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Finding the Fourth Proportional to 115,578.50, 159,498.34 and 62,586.50

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Solution

The fourth proportional to 115,578.50, 159,498.34 and 62,586.50 is: 86,369.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,578.50 : 159,498.34 = 62,586.50 : x
  2. Step 2: Convert to fraction form
    115,578.50/159,498.34 = 62,586.50/x
  3. Step 3: Cross multiply
    115,578.50x = 159,498.34 × 62,586.50
  4. Step 4: Simplify right side
    115,578.50x = 9,982,442,856.41
  5. Step 5: Solve for x
    x = 9,982,442,856.41/115,578.50
  6. Step 6: Final answer
    x = 86,369.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.