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Finding the Fourth Proportional to 115,656.48, 159,679.44 and 88,747.92

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Solution

The fourth proportional to 115,656.48, 159,679.44 and 88,747.92 is: 122,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,656.48 : 159,679.44 = 88,747.92 : x
  2. Step 2: Convert to fraction form
    115,656.48/159,679.44 = 88,747.92/x
  3. Step 3: Cross multiply
    115,656.48x = 159,679.44 × 88,747.92
  4. Step 4: Simplify right side
    115,656.48x = 14,171,218,166.76
  5. Step 5: Solve for x
    x = 14,171,218,166.76/115,656.48
  6. Step 6: Final answer
    x = 122,528.53

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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.