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Finding the Fourth Proportional to 89,514, 123,532.92 and 53,690.94

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Solution

The fourth proportional to 89,514, 123,532.92 and 53,690.94 is: 74,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,514 : 123,532.92 = 53,690.94 : x
  2. Step 2: Convert to fraction form
    89,514/123,532.92 = 53,690.94/x
  3. Step 3: Cross multiply
    89,514x = 123,532.92 × 53,690.94
  4. Step 4: Simplify right side
    89,514x = 6,632,598,595.74
  5. Step 5: Solve for x
    x = 6,632,598,595.74/89,514
  6. Step 6: Final answer
    x = 74,095.66

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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.