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Finding the Fourth Proportional to 220,674.47, 304,521.80 and 125,179.11

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Solution

The fourth proportional to 220,674.47, 304,521.80 and 125,179.11 is: 172,742.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,674.47 : 304,521.80 = 125,179.11 : x
  2. Step 2: Convert to fraction form
    220,674.47/304,521.80 = 125,179.11/x
  3. Step 3: Cross multiply
    220,674.47x = 304,521.80 × 125,179.11
  4. Step 4: Simplify right side
    220,674.47x = 38,119,767,273.70
  5. Step 5: Solve for x
    x = 38,119,767,273.70/220,674.47
  6. Step 6: Final answer
    x = 172,742.09

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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.