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Finding the Fourth Proportional to 92,354.68, 138,541.74 and 45,562.60

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Solution

The fourth proportional to 92,354.68, 138,541.74 and 45,562.60 is: 68,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,354.68 : 138,541.74 = 45,562.60 : x
  2. Step 2: Convert to fraction form
    92,354.68/138,541.74 = 45,562.60/x
  3. Step 3: Cross multiply
    92,354.68x = 138,541.74 × 45,562.60
  4. Step 4: Simplify right side
    92,354.68x = 6,312,321,882.92
  5. Step 5: Solve for x
    x = 6,312,321,882.92/92,354.68
  6. Step 6: Final answer
    x = 68,348.70

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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.