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Finding the Fourth Proportional to 83,205.68, 114,822.14 and 45,480.20

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Solution

The fourth proportional to 83,205.68, 114,822.14 and 45,480.20 is: 62,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,205.68 : 114,822.14 = 45,480.20 : x
  2. Step 2: Convert to fraction form
    83,205.68/114,822.14 = 45,480.20/x
  3. Step 3: Cross multiply
    83,205.68x = 114,822.14 × 45,480.20
  4. Step 4: Simplify right side
    83,205.68x = 5,222,133,891.63
  5. Step 5: Solve for x
    x = 5,222,133,891.63/83,205.68
  6. Step 6: Final answer
    x = 62,761.75

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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.