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Finding the Fourth Proportional to 83,276.10, 124,914.15 and 47,700.90

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Solution

The fourth proportional to 83,276.10, 124,914.15 and 47,700.90 is: 71,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,276.10 : 124,914.15 = 47,700.90 : x
  2. Step 2: Convert to fraction form
    83,276.10/124,914.15 = 47,700.90/x
  3. Step 3: Cross multiply
    83,276.10x = 124,914.15 × 47,700.90
  4. Step 4: Simplify right side
    83,276.10x = 5,958,517,377.74
  5. Step 5: Solve for x
    x = 5,958,517,377.74/83,276.10
  6. Step 6: Final answer
    x = 71,551.35

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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.