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Finding the Fourth Proportional to 202,359.29, 279,248.48 and 111,713.30

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Solution

The fourth proportional to 202,359.29, 279,248.48 and 111,713.30 is: 154,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,359.29 : 279,248.48 = 111,713.30 : x
  2. Step 2: Convert to fraction form
    202,359.29/279,248.48 = 111,713.30/x
  3. Step 3: Cross multiply
    202,359.29x = 279,248.48 × 111,713.30
  4. Step 4: Simplify right side
    202,359.29x = 31,195,767,265.98
  5. Step 5: Solve for x
    x = 31,195,767,265.98/202,359.29
  6. Step 6: Final answer
    x = 154,160.30

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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.