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Finding the Fourth Proportional to 92,043.46, 138,049.80 and 25,490.32

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Solution

The fourth proportional to 92,043.46, 138,049.80 and 25,490.32 is: 38,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,043.46 : 138,049.80 = 25,490.32 : x
  2. Step 2: Convert to fraction form
    92,043.46/138,049.80 = 25,490.32/x
  3. Step 3: Cross multiply
    92,043.46x = 138,049.80 × 25,490.32
  4. Step 4: Simplify right side
    92,043.46x = 3,518,933,577.94
  5. Step 5: Solve for x
    x = 3,518,933,577.94/92,043.46
  6. Step 6: Final answer
    x = 38,231.22

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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.