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Finding the Fourth Proportional to 89,502.87, 123,514.80 and 49,216.89

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Solution

The fourth proportional to 89,502.87, 123,514.80 and 49,216.89 is: 67,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,502.87 : 123,514.80 = 49,216.89 : x
  2. Step 2: Convert to fraction form
    89,502.87/123,514.80 = 49,216.89/x
  3. Step 3: Cross multiply
    89,502.87x = 123,514.80 × 49,216.89
  4. Step 4: Simplify right side
    89,502.87x = 6,079,014,324.97
  5. Step 5: Solve for x
    x = 6,079,014,324.97/89,502.87
  6. Step 6: Final answer
    x = 67,919.77

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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.