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Finding the Fourth Proportional to 203,886.88, 281,354.14 and 113,248.60

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Solution

The fourth proportional to 203,886.88, 281,354.14 and 113,248.60 is: 156,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,886.88 : 281,354.14 = 113,248.60 : x
  2. Step 2: Convert to fraction form
    203,886.88/281,354.14 = 113,248.60/x
  3. Step 3: Cross multiply
    203,886.88x = 281,354.14 × 113,248.60
  4. Step 4: Simplify right side
    203,886.88x = 31,862,962,459.20
  5. Step 5: Solve for x
    x = 31,862,962,459.20/203,886.88
  6. Step 6: Final answer
    x = 156,277.65

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1.5x scale

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.