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Finding the Fourth Proportional to 267,922.62, 401,603.31 and 90,368.46

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Solution

The fourth proportional to 267,922.62, 401,603.31 and 90,368.46 is: 135,458.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,922.62 : 401,603.31 = 90,368.46 : x
  2. Step 2: Convert to fraction form
    267,922.62/401,603.31 = 90,368.46/x
  3. Step 3: Cross multiply
    267,922.62x = 401,603.31 × 90,368.46
  4. Step 4: Simplify right side
    267,922.62x = 36,292,272,655.60
  5. Step 5: Solve for x
    x = 36,292,272,655.60/267,922.62
  6. Step 6: Final answer
    x = 135,458.04

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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.