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Finding the Fourth Proportional to 202,370.67, 279,275.40 and 111,726.39

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Solution

The fourth proportional to 202,370.67, 279,275.40 and 111,726.39 is: 154,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,370.67 : 279,275.40 = 111,726.39 : x
  2. Step 2: Convert to fraction form
    202,370.67/279,275.40 = 111,726.39/x
  3. Step 3: Cross multiply
    202,370.67x = 279,275.40 × 111,726.39
  4. Step 4: Simplify right side
    202,370.67x = 31,202,432,257.81
  5. Step 5: Solve for x
    x = 31,202,432,257.81/202,370.67
  6. Step 6: Final answer
    x = 154,184.56

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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.