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Finding the Fourth Proportional to 59,861.60, 89,716.80 and 30,287.60

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Solution

The fourth proportional to 59,861.60, 89,716.80 and 30,287.60 is: 45,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,861.60 : 89,716.80 = 30,287.60 : x
  2. Step 2: Convert to fraction form
    59,861.60/89,716.80 = 30,287.60/x
  3. Step 3: Cross multiply
    59,861.60x = 89,716.80 × 30,287.60
  4. Step 4: Simplify right side
    59,861.60x = 2,717,306,551.68
  5. Step 5: Solve for x
    x = 2,717,306,551.68/59,861.60
  6. Step 6: Final answer
    x = 45,393.15

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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.