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Finding the Fourth Proportional to 79,934.54, 119,901.60 and 75,062.80

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Solution

The fourth proportional to 79,934.54, 119,901.60 and 75,062.80 is: 112,594.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,934.54 : 119,901.60 = 75,062.80 : x
  2. Step 2: Convert to fraction form
    79,934.54/119,901.60 = 75,062.80/x
  3. Step 3: Cross multiply
    79,934.54x = 119,901.60 × 75,062.80
  4. Step 4: Simplify right side
    79,934.54x = 9,000,149,820.48
  5. Step 5: Solve for x
    x = 9,000,149,820.48/79,934.54
  6. Step 6: Final answer
    x = 112,594.00

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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.