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Finding the Fourth Proportional to 115,487.25, 159,372.89 and 62,495.25

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Solution

The fourth proportional to 115,487.25, 159,372.89 and 62,495.25 is: 86,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,487.25 : 159,372.89 = 62,495.25 : x
  2. Step 2: Convert to fraction form
    115,487.25/159,372.89 = 62,495.25/x
  3. Step 3: Cross multiply
    115,487.25x = 159,372.89 × 62,495.25
  4. Step 4: Simplify right side
    115,487.25x = 9,960,048,603.77
  5. Step 5: Solve for x
    x = 9,960,048,603.77/115,487.25
  6. Step 6: Final answer
    x = 86,243.71

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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.