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Finding the Fourth Proportional to 267,692.40, 401,077.80 and 127,148.40

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Solution

The fourth proportional to 267,692.40, 401,077.80 and 127,148.40 is: 190,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,692.40 : 401,077.80 = 127,148.40 : x
  2. Step 2: Convert to fraction form
    267,692.40/401,077.80 = 127,148.40/x
  3. Step 3: Cross multiply
    267,692.40x = 401,077.80 × 127,148.40
  4. Step 4: Simplify right side
    267,692.40x = 50,996,400,545.52
  5. Step 5: Solve for x
    x = 50,996,400,545.52/267,692.40
  6. Step 6: Final answer
    x = 190,503.73

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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.