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Finding the Fourth Proportional to 577,513.29, 866,393.56 and 172,737.26

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Solution

The fourth proportional to 577,513.29, 866,393.56 and 172,737.26 is: 259,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,513.29 : 866,393.56 = 172,737.26 : x
  2. Step 2: Convert to fraction form
    577,513.29/866,393.56 = 172,737.26/x
  3. Step 3: Cross multiply
    577,513.29x = 866,393.56 × 172,737.26
  4. Step 4: Simplify right side
    577,513.29x = 149,658,445,304.08
  5. Step 5: Solve for x
    x = 149,658,445,304.08/577,513.29
  6. Step 6: Final answer
    x = 259,142.86

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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.