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Finding the Fourth Proportional to 159,610.40, 239,396.40 and 66,106.40

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Solution

The fourth proportional to 159,610.40, 239,396.40 and 66,106.40 is: 99,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,610.40 : 239,396.40 = 66,106.40 : x
  2. Step 2: Convert to fraction form
    159,610.40/239,396.40 = 66,106.40/x
  3. Step 3: Cross multiply
    159,610.40x = 239,396.40 × 66,106.40
  4. Step 4: Simplify right side
    159,610.40x = 15,825,634,176.96
  5. Step 5: Solve for x
    x = 15,825,634,176.96/159,610.40
  6. Step 6: Final answer
    x = 99,151.65

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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.