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Finding the Fourth Proportional to 159,828.30, 239,851.80 and 88,750.80

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Solution

The fourth proportional to 159,828.30, 239,851.80 and 88,750.80 is: 133,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,828.30 : 239,851.80 = 88,750.80 : x
  2. Step 2: Convert to fraction form
    159,828.30/239,851.80 = 88,750.80/x
  3. Step 3: Cross multiply
    159,828.30x = 239,851.80 × 88,750.80
  4. Step 4: Simplify right side
    159,828.30x = 21,287,039,131.44
  5. Step 5: Solve for x
    x = 21,287,039,131.44/159,828.30
  6. Step 6: Final answer
    x = 133,186.92

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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.