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Finding the Fourth Proportional to 580,001.28, 869,843.52 and 159,177.12

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Solution

The fourth proportional to 580,001.28, 869,843.52 and 159,177.12 is: 238,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,001.28 : 869,843.52 = 159,177.12 : x
  2. Step 2: Convert to fraction form
    580,001.28/869,843.52 = 159,177.12/x
  3. Step 3: Cross multiply
    580,001.28x = 869,843.52 × 159,177.12
  4. Step 4: Simplify right side
    580,001.28x = 138,459,186,364.26
  5. Step 5: Solve for x
    x = 138,459,186,364.26/580,001.28
  6. Step 6: Final answer
    x = 238,722.21

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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.