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Finding the Fourth Proportional to 74,272,428,753.30, 111,408,643,129.95 and 74,272,428,753.30

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Solution

The fourth proportional to 74,272,428,753.30, 111,408,643,129.95 and 74,272,428,753.30 is: 111,408,643,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272,428,753.30 : 111,408,643,129.95 = 74,272,428,753.30 : x
  2. Step 2: Convert to fraction form
    74,272,428,753.30/111,408,643,129.95 = 74,272,428,753.30/x
  3. Step 3: Cross multiply
    74,272,428,753.30x = 111,408,643,129.95 × 74,272,428,753.30
  4. Step 4: Simplify right side
    74,272,428,753.30x = 8,274,590,509,371,037,319,168
  5. Step 5: Solve for x
    x = 8,274,590,509,371,037,319,168/74,272,428,753.30
  6. Step 6: Final answer
    x = 111,408,643,129.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.