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Finding the Fourth Proportional to 83,678.40, 125,517.60 and 58,746.60

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Solution

The fourth proportional to 83,678.40, 125,517.60 and 58,746.60 is: 88,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,678.40 : 125,517.60 = 58,746.60 : x
  2. Step 2: Convert to fraction form
    83,678.40/125,517.60 = 58,746.60/x
  3. Step 3: Cross multiply
    83,678.40x = 125,517.60 × 58,746.60
  4. Step 4: Simplify right side
    83,678.40x = 7,373,732,240.16
  5. Step 5: Solve for x
    x = 7,373,732,240.16/83,678.40
  6. Step 6: Final answer
    x = 88,119.90

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1.5x scale

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.