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Finding the Fourth Proportional to 337,643.16, 506,277.75 and 138,103.68

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Solution

The fourth proportional to 337,643.16, 506,277.75 and 138,103.68 is: 207,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,643.16 : 506,277.75 = 138,103.68 : x
  2. Step 2: Convert to fraction form
    337,643.16/506,277.75 = 138,103.68/x
  3. Step 3: Cross multiply
    337,643.16x = 506,277.75 × 138,103.68
  4. Step 4: Simplify right side
    337,643.16x = 69,918,820,377.12
  5. Step 5: Solve for x
    x = 69,918,820,377.12/337,643.16
  6. Step 6: Final answer
    x = 207,079.04

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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.