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Finding the Fourth Proportional to 94,214.60, 141,321.90 and 89,621.90

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Solution

The fourth proportional to 94,214.60, 141,321.90 and 89,621.90 is: 134,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,214.60 : 141,321.90 = 89,621.90 : x
  2. Step 2: Convert to fraction form
    94,214.60/141,321.90 = 89,621.90/x
  3. Step 3: Cross multiply
    94,214.60x = 141,321.90 × 89,621.90
  4. Step 4: Simplify right side
    94,214.60x = 12,665,537,189.61
  5. Step 5: Solve for x
    x = 12,665,537,189.61/94,214.60
  6. Step 6: Final answer
    x = 134,432.85

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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.