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Finding the Fourth Proportional to 581,432.64, 872,140.32 and 160,699.20

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Solution

The fourth proportional to 581,432.64, 872,140.32 and 160,699.20 is: 241,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,432.64 : 872,140.32 = 160,699.20 : x
  2. Step 2: Convert to fraction form
    581,432.64/872,140.32 = 160,699.20/x
  3. Step 3: Cross multiply
    581,432.64x = 872,140.32 × 160,699.20
  4. Step 4: Simplify right side
    581,432.64x = 140,152,251,711.74
  5. Step 5: Solve for x
    x = 140,152,251,711.74/581,432.64
  6. Step 6: Final answer
    x = 241,046.41

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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.