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Finding the Fourth Proportional to 244,287.80, 366,431.70 and 86,532.20

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Solution

The fourth proportional to 244,287.80, 366,431.70 and 86,532.20 is: 129,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,287.80 : 366,431.70 = 86,532.20 : x
  2. Step 2: Convert to fraction form
    244,287.80/366,431.70 = 86,532.20/x
  3. Step 3: Cross multiply
    244,287.80x = 366,431.70 × 86,532.20
  4. Step 4: Simplify right side
    244,287.80x = 31,708,141,150.74
  5. Step 5: Solve for x
    x = 31,708,141,150.74/244,287.80
  6. Step 6: Final answer
    x = 129,798.30

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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.