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Finding the Fourth Proportional to 412,041.59, 618,158.24 and 127,717.06

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Solution

The fourth proportional to 412,041.59, 618,158.24 and 127,717.06 is: 191,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,041.59 : 618,158.24 = 127,717.06 : x
  2. Step 2: Convert to fraction form
    412,041.59/618,158.24 = 127,717.06/x
  3. Step 3: Cross multiply
    412,041.59x = 618,158.24 × 127,717.06
  4. Step 4: Simplify right side
    412,041.59x = 78,949,353,027.57
  5. Step 5: Solve for x
    x = 78,949,353,027.57/412,041.59
  6. Step 6: Final answer
    x = 191,605.30

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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.