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Finding the Fourth Proportional to 118,847.20, 178,227.60 and 59,663.20

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Solution

The fourth proportional to 118,847.20, 178,227.60 and 59,663.20 is: 89,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,847.20 : 178,227.60 = 59,663.20 : x
  2. Step 2: Convert to fraction form
    118,847.20/178,227.60 = 59,663.20/x
  3. Step 3: Cross multiply
    118,847.20x = 178,227.60 × 59,663.20
  4. Step 4: Simplify right side
    118,847.20x = 10,633,628,944.32
  5. Step 5: Solve for x
    x = 10,633,628,944.32/118,847.20
  6. Step 6: Final answer
    x = 89,473.11

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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.