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Finding the Fourth Proportional to 519,878.92, 779,892.68 and 160,080.16

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Solution

The fourth proportional to 519,878.92, 779,892.68 and 160,080.16 is: 240,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,878.92 : 779,892.68 = 160,080.16 : x
  2. Step 2: Convert to fraction form
    519,878.92/779,892.68 = 160,080.16/x
  3. Step 3: Cross multiply
    519,878.92x = 779,892.68 × 160,080.16
  4. Step 4: Simplify right side
    519,878.92x = 124,845,344,997.23
  5. Step 5: Solve for x
    x = 124,845,344,997.23/519,878.92
  6. Step 6: Final answer
    x = 240,143.12

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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.