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Finding the Fourth Proportional to 94,425.80, 141,310.65 and 86,552.60

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Solution

The fourth proportional to 94,425.80, 141,310.65 and 86,552.60 is: 129,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,425.80 : 141,310.65 = 86,552.60 : x
  2. Step 2: Convert to fraction form
    94,425.80/141,310.65 = 86,552.60/x
  3. Step 3: Cross multiply
    94,425.80x = 141,310.65 × 86,552.60
  4. Step 4: Simplify right side
    94,425.80x = 12,230,804,165.19
  5. Step 5: Solve for x
    x = 12,230,804,165.19/94,425.80
  6. Step 6: Final answer
    x = 129,528.20

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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.