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Finding the Fourth Proportional to 92,192.98, 138,258.66 and 36,018.52

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Solution

The fourth proportional to 92,192.98, 138,258.66 and 36,018.52 is: 54,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,192.98 : 138,258.66 = 36,018.52 : x
  2. Step 2: Convert to fraction form
    92,192.98/138,258.66 = 36,018.52/x
  3. Step 3: Cross multiply
    92,192.98x = 138,258.66 × 36,018.52
  4. Step 4: Simplify right side
    92,192.98x = 4,979,872,310.38
  5. Step 5: Solve for x
    x = 4,979,872,310.38/92,192.98
  6. Step 6: Final answer
    x = 54,015.74

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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.