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Finding the Fourth Proportional to 109,479.96, 151,079.34 and 61,732.92

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Solution

The fourth proportional to 109,479.96, 151,079.34 and 61,732.92 is: 85,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,479.96 : 151,079.34 = 61,732.92 : x
  2. Step 2: Convert to fraction form
    109,479.96/151,079.34 = 61,732.92/x
  3. Step 3: Cross multiply
    109,479.96x = 151,079.34 × 61,732.92
  4. Step 4: Simplify right side
    109,479.96x = 9,326,568,809.87
  5. Step 5: Solve for x
    x = 9,326,568,809.87/109,479.96
  6. Step 6: Final answer
    x = 85,189.74

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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.