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Finding the Fourth Proportional to 250,446.16, 375,692.40 and 90,562

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Solution

The fourth proportional to 250,446.16, 375,692.40 and 90,562 is: 135,851.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,446.16 : 375,692.40 = 90,562 : x
  2. Step 2: Convert to fraction form
    250,446.16/375,692.40 = 90,562/x
  3. Step 3: Cross multiply
    250,446.16x = 375,692.40 × 90,562
  4. Step 4: Simplify right side
    250,446.16x = 34,023,455,128.80
  5. Step 5: Solve for x
    x = 34,023,455,128.80/250,446.16
  6. Step 6: Final answer
    x = 135,851.37

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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.