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Finding the Fourth Proportional to 83,095.60, 124,562.40 and 47,520.40

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Solution

The fourth proportional to 83,095.60, 124,562.40 and 47,520.40 is: 71,234.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,095.60 : 124,562.40 = 47,520.40 : x
  2. Step 2: Convert to fraction form
    83,095.60/124,562.40 = 47,520.40/x
  3. Step 3: Cross multiply
    83,095.60x = 124,562.40 × 47,520.40
  4. Step 4: Simplify right side
    83,095.60x = 5,919,255,072.96
  5. Step 5: Solve for x
    x = 5,919,255,072.96/83,095.60
  6. Step 6: Final answer
    x = 71,234.28

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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.