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Finding the Fourth Proportional to 92,312.39, 138,468.49 and 22,191.71

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Solution

The fourth proportional to 92,312.39, 138,468.49 and 22,191.71 is: 33,287.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,312.39 : 138,468.49 = 22,191.71 : x
  2. Step 2: Convert to fraction form
    92,312.39/138,468.49 = 22,191.71/x
  3. Step 3: Cross multiply
    92,312.39x = 138,468.49 × 22,191.71
  4. Step 4: Simplify right side
    92,312.39x = 3,072,851,826.40
  5. Step 5: Solve for x
    x = 3,072,851,826.40/92,312.39
  6. Step 6: Final answer
    x = 33,287.53

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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.