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Finding the Fourth Proportional to 71,355.60, 98,470.49 and 41,140.76

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Solution

The fourth proportional to 71,355.60, 98,470.49 and 41,140.76 is: 56,774.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,355.60 : 98,470.49 = 41,140.76 : x
  2. Step 2: Convert to fraction form
    71,355.60/98,470.49 = 41,140.76/x
  3. Step 3: Cross multiply
    71,355.60x = 98,470.49 × 41,140.76
  4. Step 4: Simplify right side
    71,355.60x = 4,051,150,098.12
  5. Step 5: Solve for x
    x = 4,051,150,098.12/71,355.60
  6. Step 6: Final answer
    x = 56,774.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.