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Finding the Fourth Proportional to 332,282.82, 498,399.99 and 129,840.87

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Solution

The fourth proportional to 332,282.82, 498,399.99 and 129,840.87 is: 194,751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,282.82 : 498,399.99 = 129,840.87 : x
  2. Step 2: Convert to fraction form
    332,282.82/498,399.99 = 129,840.87/x
  3. Step 3: Cross multiply
    332,282.82x = 498,399.99 × 129,840.87
  4. Step 4: Simplify right side
    332,282.82x = 64,712,688,309.59
  5. Step 5: Solve for x
    x = 64,712,688,309.59/332,282.82
  6. Step 6: Final answer
    x = 194,751.83

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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.