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Finding the Fourth Proportional to 244,210.40, 366,380.40 and 86,422.40

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Solution

The fourth proportional to 244,210.40, 366,380.40 and 86,422.40 is: 129,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,210.40 : 366,380.40 = 86,422.40 : x
  2. Step 2: Convert to fraction form
    244,210.40/366,380.40 = 86,422.40/x
  3. Step 3: Cross multiply
    244,210.40x = 366,380.40 × 86,422.40
  4. Step 4: Simplify right side
    244,210.40x = 31,663,473,480.96
  5. Step 5: Solve for x
    x = 31,663,473,480.96/244,210.40
  6. Step 6: Final answer
    x = 129,656.53

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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.