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Finding the Fourth Proportional to 115,451.92, 173,232.71 and 79,967.84

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Solution

The fourth proportional to 115,451.92, 173,232.71 and 79,967.84 is: 119,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,451.92 : 173,232.71 = 79,967.84 : x
  2. Step 2: Convert to fraction form
    115,451.92/173,232.71 = 79,967.84/x
  3. Step 3: Cross multiply
    115,451.92x = 173,232.71 × 79,967.84
  4. Step 4: Simplify right side
    115,451.92x = 13,853,046,206.50
  5. Step 5: Solve for x
    x = 13,853,046,206.50/115,451.92
  6. Step 6: Final answer
    x = 119,989.74

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1.5x scale

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.