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Finding the Fourth Proportional to 493,757.08, 740,636.70 and 178,436.68

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Solution

The fourth proportional to 493,757.08, 740,636.70 and 178,436.68 is: 267,655.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,757.08 : 740,636.70 = 178,436.68 : x
  2. Step 2: Convert to fraction form
    493,757.08/740,636.70 = 178,436.68/x
  3. Step 3: Cross multiply
    493,757.08x = 740,636.70 × 178,436.68
  4. Step 4: Simplify right side
    493,757.08x = 132,156,753,834.16
  5. Step 5: Solve for x
    x = 132,156,753,834.16/493,757.08
  6. Step 6: Final answer
    x = 267,655.41

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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.