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Finding the Fourth Proportional to 92,640.71, 138,920.06 and 33,476.90

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Solution

The fourth proportional to 92,640.71, 138,920.06 and 33,476.90 is: 50,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,640.71 : 138,920.06 = 33,476.90 : x
  2. Step 2: Convert to fraction form
    92,640.71/138,920.06 = 33,476.90/x
  3. Step 3: Cross multiply
    92,640.71x = 138,920.06 × 33,476.90
  4. Step 4: Simplify right side
    92,640.71x = 4,650,612,345.71
  5. Step 5: Solve for x
    x = 4,650,612,345.71/92,640.71
  6. Step 6: Final answer
    x = 50,200.52

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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.