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Finding the Fourth Proportional to 437,909.22, 656,572.23 and 157,390.02

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Solution

The fourth proportional to 437,909.22, 656,572.23 and 157,390.02 is: 235,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,909.22 : 656,572.23 = 157,390.02 : x
  2. Step 2: Convert to fraction form
    437,909.22/656,572.23 = 157,390.02/x
  3. Step 3: Cross multiply
    437,909.22x = 656,572.23 × 157,390.02
  4. Step 4: Simplify right side
    437,909.22x = 103,337,916,411.15
  5. Step 5: Solve for x
    x = 103,337,916,411.15/437,909.22
  6. Step 6: Final answer
    x = 235,980.23

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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.