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Finding the Fourth Proportional to 74,103.15, 111,073.17 and 36,607.71

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Solution

The fourth proportional to 74,103.15, 111,073.17 and 36,607.71 is: 54,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,103.15 : 111,073.17 = 36,607.71 : x
  2. Step 2: Convert to fraction form
    74,103.15/111,073.17 = 36,607.71/x
  3. Step 3: Cross multiply
    74,103.15x = 111,073.17 × 36,607.71
  4. Step 4: Simplify right side
    74,103.15x = 4,066,134,396.14
  5. Step 5: Solve for x
    x = 4,066,134,396.14/74,103.15
  6. Step 6: Final answer
    x = 54,871.28

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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.