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Finding the Fourth Proportional to 118,403.77, 177,452.56 and 88,587.67

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Solution

The fourth proportional to 118,403.77, 177,452.56 and 88,587.67 is: 132,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,403.77 : 177,452.56 = 88,587.67 : x
  2. Step 2: Convert to fraction form
    118,403.77/177,452.56 = 88,587.67/x
  3. Step 3: Cross multiply
    118,403.77x = 177,452.56 × 88,587.67
  4. Step 4: Simplify right side
    118,403.77x = 15,720,108,825.94
  5. Step 5: Solve for x
    x = 15,720,108,825.94/118,403.77
  6. Step 6: Final answer
    x = 132,766.96

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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.