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Finding the Fourth Proportional to 89,658.51, 123,691.67 and 53,352.75

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Solution

The fourth proportional to 89,658.51, 123,691.67 and 53,352.75 is: 73,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,658.51 : 123,691.67 = 53,352.75 : x
  2. Step 2: Convert to fraction form
    89,658.51/123,691.67 = 53,352.75/x
  3. Step 3: Cross multiply
    89,658.51x = 123,691.67 × 53,352.75
  4. Step 4: Simplify right side
    89,658.51x = 6,599,290,479.83
  5. Step 5: Solve for x
    x = 6,599,290,479.83/89,658.51
  6. Step 6: Final answer
    x = 73,604.73

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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.