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Finding the Fourth Proportional to 114,343.47, 157,799.85 and 69,020.87

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Solution

The fourth proportional to 114,343.47, 157,799.85 and 69,020.87 is: 95,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,343.47 : 157,799.85 = 69,020.87 : x
  2. Step 2: Convert to fraction form
    114,343.47/157,799.85 = 69,020.87/x
  3. Step 3: Cross multiply
    114,343.47x = 157,799.85 × 69,020.87
  4. Step 4: Simplify right side
    114,343.47x = 10,891,481,885.04
  5. Step 5: Solve for x
    x = 10,891,481,885.04/114,343.47
  6. Step 6: Final answer
    x = 95,252.33

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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.