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Finding the Fourth Proportional to 169,463.97, 253,886.13 and 79,341.35

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Solution

The fourth proportional to 169,463.97, 253,886.13 and 79,341.35 is: 118,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,463.97 : 253,886.13 = 79,341.35 : x
  2. Step 2: Convert to fraction form
    169,463.97/253,886.13 = 79,341.35/x
  3. Step 3: Cross multiply
    169,463.97x = 253,886.13 × 79,341.35
  4. Step 4: Simplify right side
    169,463.97x = 20,143,667,031.04
  5. Step 5: Solve for x
    x = 20,143,667,031.04/169,463.97
  6. Step 6: Final answer
    x = 118,866.96

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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.