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Finding the Fourth Proportional to 118,211.60, 177,025.80 and 88,468.40

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Solution

The fourth proportional to 118,211.60, 177,025.80 and 88,468.40 is: 132,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,211.60 : 177,025.80 = 88,468.40 : x
  2. Step 2: Convert to fraction form
    118,211.60/177,025.80 = 88,468.40/x
  3. Step 3: Cross multiply
    118,211.60x = 177,025.80 × 88,468.40
  4. Step 4: Simplify right side
    118,211.60x = 15,661,189,284.72
  5. Step 5: Solve for x
    x = 15,661,189,284.72/118,211.60
  6. Step 6: Final answer
    x = 132,484.37

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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.