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Finding the Fourth Proportional to 92,310.48, 138,701.88 and 89,741.52

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Solution

The fourth proportional to 92,310.48, 138,701.88 and 89,741.52 is: 134,841.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,310.48 : 138,701.88 = 89,741.52 : x
  2. Step 2: Convert to fraction form
    92,310.48/138,701.88 = 89,741.52/x
  3. Step 3: Cross multiply
    92,310.48x = 138,701.88 × 89,741.52
  4. Step 4: Simplify right side
    92,310.48x = 12,447,317,538.06
  5. Step 5: Solve for x
    x = 12,447,317,538.06/92,310.48
  6. Step 6: Final answer
    x = 134,841.87

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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.