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Finding the Fourth Proportional to 124,865.20, 187,470.60 and 98,599.60

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Solution

The fourth proportional to 124,865.20, 187,470.60 and 98,599.60 is: 148,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,865.20 : 187,470.60 = 98,599.60 : x
  2. Step 2: Convert to fraction form
    124,865.20/187,470.60 = 98,599.60/x
  3. Step 3: Cross multiply
    124,865.20x = 187,470.60 × 98,599.60
  4. Step 4: Simplify right side
    124,865.20x = 18,484,526,171.76
  5. Step 5: Solve for x
    x = 18,484,526,171.76/124,865.20
  6. Step 6: Final answer
    x = 148,035.85

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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.