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Finding the Fourth Proportional to 59,955.60, 90,012.60 and 48,115.92

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Solution

The fourth proportional to 59,955.60, 90,012.60 and 48,115.92 is: 72,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,955.60 : 90,012.60 = 48,115.92 : x
  2. Step 2: Convert to fraction form
    59,955.60/90,012.60 = 48,115.92/x
  3. Step 3: Cross multiply
    59,955.60x = 90,012.60 × 48,115.92
  4. Step 4: Simplify right side
    59,955.60x = 4,331,039,060.59
  5. Step 5: Solve for x
    x = 4,331,039,060.59/59,955.60
  6. Step 6: Final answer
    x = 72,237.44

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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.