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Finding the Fourth Proportional to 440,701.44, 661,046.40 and 108,280.32

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Solution

The fourth proportional to 440,701.44, 661,046.40 and 108,280.32 is: 162,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,701.44 : 661,046.40 = 108,280.32 : x
  2. Step 2: Convert to fraction form
    440,701.44/661,046.40 = 108,280.32/x
  3. Step 3: Cross multiply
    440,701.44x = 661,046.40 × 108,280.32
  4. Step 4: Simplify right side
    440,701.44x = 71,578,315,726.85
  5. Step 5: Solve for x
    x = 71,578,315,726.85/440,701.44
  6. Step 6: Final answer
    x = 162,419.06

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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.