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Finding the Fourth Proportional to 159,855.66, 220,602.62 and 88,235.71

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Solution

The fourth proportional to 159,855.66, 220,602.62 and 88,235.71 is: 121,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,855.66 : 220,602.62 = 88,235.71 : x
  2. Step 2: Convert to fraction form
    159,855.66/220,602.62 = 88,235.71/x
  3. Step 3: Cross multiply
    159,855.66x = 220,602.62 × 88,235.71
  4. Step 4: Simplify right side
    159,855.66x = 19,465,028,803.56
  5. Step 5: Solve for x
    x = 19,465,028,803.56/159,855.66
  6. Step 6: Final answer
    x = 121,766.28

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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.