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Finding the Fourth Proportional to 202,496.18, 279,442.97 and 111,858.48

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Solution

The fourth proportional to 202,496.18, 279,442.97 and 111,858.48 is: 154,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,496.18 : 279,442.97 = 111,858.48 : x
  2. Step 2: Convert to fraction form
    202,496.18/279,442.97 = 111,858.48/x
  3. Step 3: Cross multiply
    202,496.18x = 279,442.97 × 111,858.48
  4. Step 4: Simplify right side
    202,496.18x = 31,258,064,473.67
  5. Step 5: Solve for x
    x = 31,258,064,473.67/202,496.18
  6. Step 6: Final answer
    x = 154,363.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.