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Finding the Fourth Proportional to 202,729.65, 279,772.74 and 112,091.46

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Solution

The fourth proportional to 202,729.65, 279,772.74 and 112,091.46 is: 154,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,729.65 : 279,772.74 = 112,091.46 : x
  2. Step 2: Convert to fraction form
    202,729.65/279,772.74 = 112,091.46/x
  3. Step 3: Cross multiply
    202,729.65x = 279,772.74 × 112,091.46
  4. Step 4: Simplify right side
    202,729.65x = 31,360,134,894.80
  5. Step 5: Solve for x
    x = 31,360,134,894.80/202,729.65
  6. Step 6: Final answer
    x = 154,689.43

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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.