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Finding the Fourth Proportional to 474,778.80, 712,143.45 and 119,795.91

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Solution

The fourth proportional to 474,778.80, 712,143.45 and 119,795.91 is: 179,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,778.80 : 712,143.45 = 119,795.91 : x
  2. Step 2: Convert to fraction form
    474,778.80/712,143.45 = 119,795.91/x
  3. Step 3: Cross multiply
    474,778.80x = 712,143.45 × 119,795.91
  4. Step 4: Simplify right side
    474,778.80x = 85,311,872,643.29
  5. Step 5: Solve for x
    x = 85,311,872,643.29/474,778.80
  6. Step 6: Final answer
    x = 179,687.62

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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.