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Finding the Fourth Proportional to 523,456.59, 785,018.43 and 168,387.96

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Solution

The fourth proportional to 523,456.59, 785,018.43 and 168,387.96 is: 252,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,456.59 : 785,018.43 = 168,387.96 : x
  2. Step 2: Convert to fraction form
    523,456.59/785,018.43 = 168,387.96/x
  3. Step 3: Cross multiply
    523,456.59x = 785,018.43 × 168,387.96
  4. Step 4: Simplify right side
    523,456.59x = 132,187,651,990.10
  5. Step 5: Solve for x
    x = 132,187,651,990.10/523,456.59
  6. Step 6: Final answer
    x = 252,528.39

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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.