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Finding the Fourth Proportional to 159,712.91, 220,402.92 and 88,092.77

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Solution

The fourth proportional to 159,712.91, 220,402.92 and 88,092.77 is: 121,567.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,712.91 : 220,402.92 = 88,092.77 : x
  2. Step 2: Convert to fraction form
    159,712.91/220,402.92 = 88,092.77/x
  3. Step 3: Cross multiply
    159,712.91x = 220,402.92 × 88,092.77
  4. Step 4: Simplify right side
    159,712.91x = 19,415,903,738.89
  5. Step 5: Solve for x
    x = 19,415,903,738.89/159,712.91
  6. Step 6: Final answer
    x = 121,567.53

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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.