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Finding the Fourth Proportional to 74,671.56, 112,029.20 and 22,082.40

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Solution

The fourth proportional to 74,671.56, 112,029.20 and 22,082.40 is: 33,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,671.56 : 112,029.20 = 22,082.40 : x
  2. Step 2: Convert to fraction form
    74,671.56/112,029.20 = 22,082.40/x
  3. Step 3: Cross multiply
    74,671.56x = 112,029.20 × 22,082.40
  4. Step 4: Simplify right side
    74,671.56x = 2,473,873,606.08
  5. Step 5: Solve for x
    x = 2,473,873,606.08/74,671.56
  6. Step 6: Final answer
    x = 33,130.06

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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.