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Finding the Fourth Proportional to 244,315.80, 366,344.10 and 86,549.40

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Solution

The fourth proportional to 244,315.80, 366,344.10 and 86,549.40 is: 129,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,315.80 : 366,344.10 = 86,549.40 : x
  2. Step 2: Convert to fraction form
    244,315.80/366,344.10 = 86,549.40/x
  3. Step 3: Cross multiply
    244,315.80x = 366,344.10 × 86,549.40
  4. Step 4: Simplify right side
    244,315.80x = 31,706,862,048.54
  5. Step 5: Solve for x
    x = 31,706,862,048.54/244,315.80
  6. Step 6: Final answer
    x = 129,778.19

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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.