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Finding the Fourth Proportional to 74,607.64, 111,931.95 and 22,017.12

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Solution

The fourth proportional to 74,607.64, 111,931.95 and 22,017.12 is: 33,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,607.64 : 111,931.95 = 22,017.12 : x
  2. Step 2: Convert to fraction form
    74,607.64/111,931.95 = 22,017.12/x
  3. Step 3: Cross multiply
    74,607.64x = 111,931.95 × 22,017.12
  4. Step 4: Simplify right side
    74,607.64x = 2,464,419,174.98
  5. Step 5: Solve for x
    x = 2,464,419,174.98/74,607.64
  6. Step 6: Final answer
    x = 33,031.73

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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.