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Finding the Fourth Proportional to 74,167.42, 111,059.16 and 67,424.44

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Solution

The fourth proportional to 74,167.42, 111,059.16 and 67,424.44 is: 100,962.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,167.42 : 111,059.16 = 67,424.44 : x
  2. Step 2: Convert to fraction form
    74,167.42/111,059.16 = 67,424.44/x
  3. Step 3: Cross multiply
    74,167.42x = 111,059.16 × 67,424.44
  4. Step 4: Simplify right side
    74,167.42x = 7,488,101,669.87
  5. Step 5: Solve for x
    x = 7,488,101,669.87/74,167.42
  6. Step 6: Final answer
    x = 100,962.14

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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.