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Finding the Fourth Proportional to 85,277.92, 127,917.19 and 26,113.35

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Solution

The fourth proportional to 85,277.92, 127,917.19 and 26,113.35 is: 39,170.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,277.92 : 127,917.19 = 26,113.35 : x
  2. Step 2: Convert to fraction form
    85,277.92/127,917.19 = 26,113.35/x
  3. Step 3: Cross multiply
    85,277.92x = 127,917.19 × 26,113.35
  4. Step 4: Simplify right side
    85,277.92x = 3,340,346,353.49
  5. Step 5: Solve for x
    x = 3,340,346,353.49/85,277.92
  6. Step 6: Final answer
    x = 39,170.12

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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.