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Finding the Fourth Proportional to 72,237.90, 108,266.58 and 34,791

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Solution

The fourth proportional to 72,237.90, 108,266.58 and 34,791 is: 52,143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,237.90 : 108,266.58 = 34,791 : x
  2. Step 2: Convert to fraction form
    72,237.90/108,266.58 = 34,791/x
  3. Step 3: Cross multiply
    72,237.90x = 108,266.58 × 34,791
  4. Step 4: Simplify right side
    72,237.90x = 3,766,702,584.78
  5. Step 5: Solve for x
    x = 3,766,702,584.78/72,237.90
  6. Step 6: Final answer
    x = 52,143.02

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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.