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Finding the Fourth Proportional to 160,787.75, 241,171.88 and 72,017.42

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Solution

The fourth proportional to 160,787.75, 241,171.88 and 72,017.42 is: 108,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,787.75 : 241,171.88 = 72,017.42 : x
  2. Step 2: Convert to fraction form
    160,787.75/241,171.88 = 72,017.42/x
  3. Step 3: Cross multiply
    160,787.75x = 241,171.88 × 72,017.42
  4. Step 4: Simplify right side
    160,787.75x = 17,368,575,008.20
  5. Step 5: Solve for x
    x = 17,368,575,008.20/160,787.75
  6. Step 6: Final answer
    x = 108,021.76

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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.