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Finding the Fourth Proportional to 558,758.90, 838,268.49 and 159,405.14

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Solution

The fourth proportional to 558,758.90, 838,268.49 and 159,405.14 is: 239,144.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,758.90 : 838,268.49 = 159,405.14 : x
  2. Step 2: Convert to fraction form
    558,758.90/838,268.49 = 159,405.14/x
  3. Step 3: Cross multiply
    558,758.90x = 838,268.49 × 159,405.14
  4. Step 4: Simplify right side
    558,758.90x = 133,624,306,006.04
  5. Step 5: Solve for x
    x = 133,624,306,006.04/558,758.90
  6. Step 6: Final answer
    x = 239,144.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.