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Finding the Fourth Proportional to 586,249.88, 879,389.96 and 159,789.20

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Solution

The fourth proportional to 586,249.88, 879,389.96 and 159,789.20 is: 239,687.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,249.88 : 879,389.96 = 159,789.20 : x
  2. Step 2: Convert to fraction form
    586,249.88/879,389.96 = 159,789.20/x
  3. Step 3: Cross multiply
    586,249.88x = 879,389.96 × 159,789.20
  4. Step 4: Simplify right side
    586,249.88x = 140,517,018,196.43
  5. Step 5: Solve for x
    x = 140,517,018,196.43/586,249.88
  6. Step 6: Final answer
    x = 239,687.93

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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.