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Finding the Fourth Proportional to 118,775.60, 178,163.28 and 48,655.04

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Solution

The fourth proportional to 118,775.60, 178,163.28 and 48,655.04 is: 72,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,775.60 : 178,163.28 = 48,655.04 : x
  2. Step 2: Convert to fraction form
    118,775.60/178,163.28 = 48,655.04/x
  3. Step 3: Cross multiply
    118,775.60x = 178,163.28 × 48,655.04
  4. Step 4: Simplify right side
    118,775.60x = 8,668,541,514.93
  5. Step 5: Solve for x
    x = 8,668,541,514.93/118,775.60
  6. Step 6: Final answer
    x = 72,982.51

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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.