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Finding the Fourth Proportional to 79,585.52, 109,843.64 and 45,616.80

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Solution

The fourth proportional to 79,585.52, 109,843.64 and 45,616.80 is: 62,960.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,585.52 : 109,843.64 = 45,616.80 : x
  2. Step 2: Convert to fraction form
    79,585.52/109,843.64 = 45,616.80/x
  3. Step 3: Cross multiply
    79,585.52x = 109,843.64 × 45,616.80
  4. Step 4: Simplify right side
    79,585.52x = 5,010,715,357.15
  5. Step 5: Solve for x
    x = 5,010,715,357.15/79,585.52
  6. Step 6: Final answer
    x = 62,960.14

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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.