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Finding the Fourth Proportional to 159,667.81, 220,336.88 and 88,047.81

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Solution

The fourth proportional to 159,667.81, 220,336.88 and 88,047.81 is: 121,503.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,667.81 : 220,336.88 = 88,047.81 : x
  2. Step 2: Convert to fraction form
    159,667.81/220,336.88 = 88,047.81/x
  3. Step 3: Cross multiply
    159,667.81x = 220,336.88 × 88,047.81
  4. Step 4: Simplify right side
    159,667.81x = 19,400,179,305.99
  5. Step 5: Solve for x
    x = 19,400,179,305.99/159,667.81
  6. Step 6: Final answer
    x = 121,503.39

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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.