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Finding the Fourth Proportional to 85,240.59, 127,861.17 and 26,076

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Solution

The fourth proportional to 85,240.59, 127,861.17 and 26,076 is: 39,114.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.59 : 127,861.17 = 26,076 : x
  2. Step 2: Convert to fraction form
    85,240.59/127,861.17 = 26,076/x
  3. Step 3: Cross multiply
    85,240.59x = 127,861.17 × 26,076
  4. Step 4: Simplify right side
    85,240.59x = 3,334,107,868.92
  5. Step 5: Solve for x
    x = 3,334,107,868.92/85,240.59
  6. Step 6: Final answer
    x = 39,114.09

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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.