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Finding the Fourth Proportional to 159,710.86, 220,383.48 and 88,086.34

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Solution

The fourth proportional to 159,710.86, 220,383.48 and 88,086.34 is: 121,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,710.86 : 220,383.48 = 88,086.34 : x
  2. Step 2: Convert to fraction form
    159,710.86/220,383.48 = 88,086.34/x
  3. Step 3: Cross multiply
    159,710.86x = 220,383.48 × 88,086.34
  4. Step 4: Simplify right side
    159,710.86x = 19,412,774,149.66
  5. Step 5: Solve for x
    x = 19,412,774,149.66/159,710.86
  6. Step 6: Final answer
    x = 121,549.49

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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.