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Finding the Fourth Proportional to 160,271.90, 240,195.49 and 85,230.46

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Solution

The fourth proportional to 160,271.90, 240,195.49 and 85,230.46 is: 127,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,271.90 : 240,195.49 = 85,230.46 : x
  2. Step 2: Convert to fraction form
    160,271.90/240,195.49 = 85,230.46/x
  3. Step 3: Cross multiply
    160,271.90x = 240,195.49 × 85,230.46
  4. Step 4: Simplify right side
    160,271.90x = 20,471,972,669.22
  5. Step 5: Solve for x
    x = 20,471,972,669.22/160,271.90
  6. Step 6: Final answer
    x = 127,732.76

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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.