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Finding the Fourth Proportional to 89,947.76, 134,898.12 and 26,750.88

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Solution

The fourth proportional to 89,947.76, 134,898.12 and 26,750.88 is: 40,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,947.76 : 134,898.12 = 26,750.88 : x
  2. Step 2: Convert to fraction form
    89,947.76/134,898.12 = 26,750.88/x
  3. Step 3: Cross multiply
    89,947.76x = 134,898.12 × 26,750.88
  4. Step 4: Simplify right side
    89,947.76x = 3,608,643,420.35
  5. Step 5: Solve for x
    x = 3,608,643,420.35/89,947.76
  6. Step 6: Final answer
    x = 40,119.33

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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.