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Finding the Fourth Proportional to 123,705.01, 170,600.20 and 104,624.79

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Solution

The fourth proportional to 123,705.01, 170,600.20 and 104,624.79 is: 144,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,705.01 : 170,600.20 = 104,624.79 : x
  2. Step 2: Convert to fraction form
    123,705.01/170,600.20 = 104,624.79/x
  3. Step 3: Cross multiply
    123,705.01x = 170,600.20 × 104,624.79
  4. Step 4: Simplify right side
    123,705.01x = 17,849,010,098.96
  5. Step 5: Solve for x
    x = 17,849,010,098.96/123,705.01
  6. Step 6: Final answer
    x = 144,286.88

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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.