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Finding the Fourth Proportional to 243,999.81, 366,029.24 and 86,195.97

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Solution

The fourth proportional to 243,999.81, 366,029.24 and 86,195.97 is: 129,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,999.81 : 366,029.24 = 86,195.97 : x
  2. Step 2: Convert to fraction form
    243,999.81/366,029.24 = 86,195.97/x
  3. Step 3: Cross multiply
    243,999.81x = 366,029.24 × 86,195.97
  4. Step 4: Simplify right side
    243,999.81x = 31,550,244,959.18
  5. Step 5: Solve for x
    x = 31,550,244,959.18/243,999.81
  6. Step 6: Final answer
    x = 129,304.38

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1.5x scale

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.