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Finding the Fourth Proportional to 154,761.80, 213,480.54 and 97,310.04

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Solution

The fourth proportional to 154,761.80, 213,480.54 and 97,310.04 is: 134,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,761.80 : 213,480.54 = 97,310.04 : x
  2. Step 2: Convert to fraction form
    154,761.80/213,480.54 = 97,310.04/x
  3. Step 3: Cross multiply
    154,761.80x = 213,480.54 × 97,310.04
  4. Step 4: Simplify right side
    154,761.80x = 20,773,799,886.62
  5. Step 5: Solve for x
    x = 20,773,799,886.62/154,761.80
  6. Step 6: Final answer
    x = 134,230.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.