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Finding the Fourth Proportional to 135,700.90, 203,551.35 and 88,461.70

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Solution

The fourth proportional to 135,700.90, 203,551.35 and 88,461.70 is: 132,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,700.90 : 203,551.35 = 88,461.70 : x
  2. Step 2: Convert to fraction form
    135,700.90/203,551.35 = 88,461.70/x
  3. Step 3: Cross multiply
    135,700.90x = 203,551.35 × 88,461.70
  4. Step 4: Simplify right side
    135,700.90x = 18,006,498,458.30
  5. Step 5: Solve for x
    x = 18,006,498,458.30/135,700.90
  6. Step 6: Final answer
    x = 132,692.55

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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.