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Finding the Fourth Proportional to 203,710.34, 281,117.52 and 113,066.04

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Solution

The fourth proportional to 203,710.34, 281,117.52 and 113,066.04 is: 156,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,710.34 : 281,117.52 = 113,066.04 : x
  2. Step 2: Convert to fraction form
    203,710.34/281,117.52 = 113,066.04/x
  3. Step 3: Cross multiply
    203,710.34x = 281,117.52 × 113,066.04
  4. Step 4: Simplify right side
    203,710.34x = 31,784,845,815.21
  5. Step 5: Solve for x
    x = 31,784,845,815.21/203,710.34
  6. Step 6: Final answer
    x = 156,029.61

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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.