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Finding the Fourth Proportional to 92,236.65, 138,140.44 and 89,040.31

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Solution

The fourth proportional to 92,236.65, 138,140.44 and 89,040.31 is: 133,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,236.65 : 138,140.44 = 89,040.31 : x
  2. Step 2: Convert to fraction form
    92,236.65/138,140.44 = 89,040.31/x
  3. Step 3: Cross multiply
    92,236.65x = 138,140.44 × 89,040.31
  4. Step 4: Simplify right side
    92,236.65x = 12,300,067,810.22
  5. Step 5: Solve for x
    x = 12,300,067,810.22/92,236.65
  6. Step 6: Final answer
    x = 133,353.37

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1.5x scale

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.