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Finding the Fourth Proportional to 92,199,978.36, 127,243,223.20 and 52,509,187.46

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Solution

The fourth proportional to 92,199,978.36, 127,243,223.20 and 52,509,187.46 is: 72,466,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,199,978.36 : 127,243,223.20 = 52,509,187.46 : x
  2. Step 2: Convert to fraction form
    92,199,978.36/127,243,223.20 = 52,509,187.46/x
  3. Step 3: Cross multiply
    92,199,978.36x = 127,243,223.20 × 52,509,187.46
  4. Step 4: Simplify right side
    92,199,978.36x = 6,681,438,260,023,421
  5. Step 5: Solve for x
    x = 6,681,438,260,023,421/92,199,978.36
  6. Step 6: Final answer
    x = 72,466,809.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.