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Finding the Fourth Proportional to 159,923.16, 220,692.42 and 88,301.66

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Solution

The fourth proportional to 159,923.16, 220,692.42 and 88,301.66 is: 121,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,923.16 : 220,692.42 = 88,301.66 : x
  2. Step 2: Convert to fraction form
    159,923.16/220,692.42 = 88,301.66/x
  3. Step 3: Cross multiply
    159,923.16x = 220,692.42 × 88,301.66
  4. Step 4: Simplify right side
    159,923.16x = 19,487,507,035.42
  5. Step 5: Solve for x
    x = 19,487,507,035.42/159,923.16
  6. Step 6: Final answer
    x = 121,855.44

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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.