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Finding the Fourth Proportional to 143,832.42, 215,170.47 and 124,320.42

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Solution

The fourth proportional to 143,832.42, 215,170.47 and 124,320.42 is: 185,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,832.42 : 215,170.47 = 124,320.42 : x
  2. Step 2: Convert to fraction form
    143,832.42/215,170.47 = 124,320.42/x
  3. Step 3: Cross multiply
    143,832.42x = 215,170.47 × 124,320.42
  4. Step 4: Simplify right side
    143,832.42x = 26,750,083,202.00
  5. Step 5: Solve for x
    x = 26,750,083,202.00/143,832.42
  6. Step 6: Final answer
    x = 185,980.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.