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Finding the Fourth Proportional to 74,891,972.30, 105,151,092.10 and 74,891,972.30

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Solution

The fourth proportional to 74,891,972.30, 105,151,092.10 and 74,891,972.30 is: 105,151,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,891,972.30 : 105,151,092.10 = 74,891,972.30 : x
  2. Step 2: Convert to fraction form
    74,891,972.30/105,151,092.10 = 74,891,972.30/x
  3. Step 3: Cross multiply
    74,891,972.30x = 105,151,092.10 × 74,891,972.30
  4. Step 4: Simplify right side
    74,891,972.30x = 7,874,972,676,867,948
  5. Step 5: Solve for x
    x = 7,874,972,676,867,948/74,891,972.30
  6. Step 6: Final answer
    x = 105,151,092.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.