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Finding the Fourth Proportional to 83,841.98, 115,700.78 and 45,600.70

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Solution

The fourth proportional to 83,841.98, 115,700.78 and 45,600.70 is: 62,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,841.98 : 115,700.78 = 45,600.70 : x
  2. Step 2: Convert to fraction form
    83,841.98/115,700.78 = 45,600.70/x
  3. Step 3: Cross multiply
    83,841.98x = 115,700.78 × 45,600.70
  4. Step 4: Simplify right side
    83,841.98x = 5,276,035,752.04
  5. Step 5: Solve for x
    x = 5,276,035,752.04/83,841.98
  6. Step 6: Final answer
    x = 62,928.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.