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Finding the Fourth Proportional to 83,704.93, 115,513.65 and 45,464.85

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Solution

The fourth proportional to 83,704.93, 115,513.65 and 45,464.85 is: 62,741.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,704.93 : 115,513.65 = 45,464.85 : x
  2. Step 2: Convert to fraction form
    83,704.93/115,513.65 = 45,464.85/x
  3. Step 3: Cross multiply
    83,704.93x = 115,513.65 × 45,464.85
  4. Step 4: Simplify right side
    83,704.93x = 5,251,810,770.20
  5. Step 5: Solve for x
    x = 5,251,810,770.20/83,704.93
  6. Step 6: Final answer
    x = 62,741.95

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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.