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Finding the Fourth Proportional to 92,129.40, 138,194.10 and 32,969.70

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Solution

The fourth proportional to 92,129.40, 138,194.10 and 32,969.70 is: 49,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,129.40 : 138,194.10 = 32,969.70 : x
  2. Step 2: Convert to fraction form
    92,129.40/138,194.10 = 32,969.70/x
  3. Step 3: Cross multiply
    92,129.40x = 138,194.10 × 32,969.70
  4. Step 4: Simplify right side
    92,129.40x = 4,556,218,018.77
  5. Step 5: Solve for x
    x = 4,556,218,018.77/92,129.40
  6. Step 6: Final answer
    x = 49,454.55

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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.