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Finding the Fourth Proportional to 84,498.36, 126,737.80 and 22,173.72

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Solution

The fourth proportional to 84,498.36, 126,737.80 and 22,173.72 is: 33,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,498.36 : 126,737.80 = 22,173.72 : x
  2. Step 2: Convert to fraction form
    84,498.36/126,737.80 = 22,173.72/x
  3. Step 3: Cross multiply
    84,498.36x = 126,737.80 × 22,173.72
  4. Step 4: Simplify right side
    84,498.36x = 2,810,248,490.62
  5. Step 5: Solve for x
    x = 2,810,248,490.62/84,498.36
  6. Step 6: Final answer
    x = 33,258.02

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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.