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Finding the Fourth Proportional to 83,199.68, 114,813.87 and 45,474.20

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Solution

The fourth proportional to 83,199.68, 114,813.87 and 45,474.20 is: 62,753.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,199.68 : 114,813.87 = 45,474.20 : x
  2. Step 2: Convert to fraction form
    83,199.68/114,813.87 = 45,474.20/x
  3. Step 3: Cross multiply
    83,199.68x = 114,813.87 × 45,474.20
  4. Step 4: Simplify right side
    83,199.68x = 5,221,068,887.15
  5. Step 5: Solve for x
    x = 5,221,068,887.15/83,199.68
  6. Step 6: Final answer
    x = 62,753.47

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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.