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Finding the Fourth Proportional to 203,691.93, 281,097.90 and 113,053.74

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Solution

The fourth proportional to 203,691.93, 281,097.90 and 113,053.74 is: 156,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,691.93 : 281,097.90 = 113,053.74 : x
  2. Step 2: Convert to fraction form
    203,691.93/281,097.90 = 113,053.74/x
  3. Step 3: Cross multiply
    203,691.93x = 281,097.90 × 113,053.74
  4. Step 4: Simplify right side
    203,691.93x = 31,779,168,901.15
  5. Step 5: Solve for x
    x = 31,779,168,901.15/203,691.93
  6. Step 6: Final answer
    x = 156,015.85

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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.