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Finding the Fourth Proportional to 127,701.66, 176,230.17 and 73,990.56

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Solution

The fourth proportional to 127,701.66, 176,230.17 and 73,990.56 is: 102,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,701.66 : 176,230.17 = 73,990.56 : x
  2. Step 2: Convert to fraction form
    127,701.66/176,230.17 = 73,990.56/x
  3. Step 3: Cross multiply
    127,701.66x = 176,230.17 × 73,990.56
  4. Step 4: Simplify right side
    127,701.66x = 13,039,368,967.20
  5. Step 5: Solve for x
    x = 13,039,368,967.20/127,701.66
  6. Step 6: Final answer
    x = 102,108.06

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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.