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Finding the Fourth Proportional to 135,956.10, 203,934.15 and 47,200.35

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Solution

The fourth proportional to 135,956.10, 203,934.15 and 47,200.35 is: 70,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,956.10 : 203,934.15 = 47,200.35 : x
  2. Step 2: Convert to fraction form
    135,956.10/203,934.15 = 47,200.35/x
  3. Step 3: Cross multiply
    135,956.10x = 203,934.15 × 47,200.35
  4. Step 4: Simplify right side
    135,956.10x = 9,625,763,256.95
  5. Step 5: Solve for x
    x = 9,625,763,256.95/135,956.10
  6. Step 6: Final answer
    x = 70,800.53

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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.