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Finding the Fourth Proportional to 67,122.79, 100,657.81 and 24,979.81

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Solution

The fourth proportional to 67,122.79, 100,657.81 and 24,979.81 is: 37,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,122.79 : 100,657.81 = 24,979.81 : x
  2. Step 2: Convert to fraction form
    67,122.79/100,657.81 = 24,979.81/x
  3. Step 3: Cross multiply
    67,122.79x = 100,657.81 × 24,979.81
  4. Step 4: Simplify right side
    67,122.79x = 2,514,413,219.71
  5. Step 5: Solve for x
    x = 2,514,413,219.71/67,122.79
  6. Step 6: Final answer
    x = 37,459.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.