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Finding the Fourth Proportional to 159,988.72, 240,034.92 and 54,808.60

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Solution

The fourth proportional to 159,988.72, 240,034.92 and 54,808.60 is: 82,230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,988.72 : 240,034.92 = 54,808.60 : x
  2. Step 2: Convert to fraction form
    159,988.72/240,034.92 = 54,808.60/x
  3. Step 3: Cross multiply
    159,988.72x = 240,034.92 × 54,808.60
  4. Step 4: Simplify right side
    159,988.72x = 13,155,977,916.31
  5. Step 5: Solve for x
    x = 13,155,977,916.31/159,988.72
  6. Step 6: Final answer
    x = 82,230.66

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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.