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Finding the Fourth Proportional to 127,963.60, 176,593.56 and 71,373.76

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Solution

The fourth proportional to 127,963.60, 176,593.56 and 71,373.76 is: 98,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,963.60 : 176,593.56 = 71,373.76 : x
  2. Step 2: Convert to fraction form
    127,963.60/176,593.56 = 71,373.76/x
  3. Step 3: Cross multiply
    127,963.60x = 176,593.56 × 71,373.76
  4. Step 4: Simplify right side
    127,963.60x = 12,604,146,368.99
  5. Step 5: Solve for x
    x = 12,604,146,368.99/127,963.60
  6. Step 6: Final answer
    x = 98,497.90

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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.