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Finding the Fourth Proportional to 334,454.60, 501,681.90 and 156,979.55

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Solution

The fourth proportional to 334,454.60, 501,681.90 and 156,979.55 is: 235,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,454.60 : 501,681.90 = 156,979.55 : x
  2. Step 2: Convert to fraction form
    334,454.60/501,681.90 = 156,979.55/x
  3. Step 3: Cross multiply
    334,454.60x = 501,681.90 × 156,979.55
  4. Step 4: Simplify right side
    334,454.60x = 78,753,798,905.15
  5. Step 5: Solve for x
    x = 78,753,798,905.15/334,454.60
  6. Step 6: Final answer
    x = 235,469.33

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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.