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Finding the Fourth Proportional to 127,884.92, 176,479.26 and 71,294.84

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Solution

The fourth proportional to 127,884.92, 176,479.26 and 71,294.84 is: 98,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,884.92 : 176,479.26 = 71,294.84 : x
  2. Step 2: Convert to fraction form
    127,884.92/176,479.26 = 71,294.84/x
  3. Step 3: Cross multiply
    127,884.92x = 176,479.26 × 71,294.84
  4. Step 4: Simplify right side
    127,884.92x = 12,582,060,605.02
  5. Step 5: Solve for x
    x = 12,582,060,605.02/127,884.92
  6. Step 6: Final answer
    x = 98,385.80

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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.