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Finding the Fourth Proportional to 132,499,892.40, 198,631,643.40 and 51,702,068.40

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Solution

The fourth proportional to 132,499,892.40, 198,631,643.40 and 51,702,068.40 is: 77,506,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,499,892.40 : 198,631,643.40 = 51,702,068.40 : x
  2. Step 2: Convert to fraction form
    132,499,892.40/198,631,643.40 = 51,702,068.40/x
  3. Step 3: Cross multiply
    132,499,892.40x = 198,631,643.40 × 51,702,068.40
  4. Step 4: Simplify right side
    132,499,892.40x = 10,269,666,813,471,208
  5. Step 5: Solve for x
    x = 10,269,666,813,471,208/132,499,892.40
  6. Step 6: Final answer
    x = 77,506,982.29

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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.