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Finding the Fourth Proportional to 157,806.34, 217,716.33 and 93,261.94

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Solution

The fourth proportional to 157,806.34, 217,716.33 and 93,261.94 is: 128,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,806.34 : 217,716.33 = 93,261.94 : x
  2. Step 2: Convert to fraction form
    157,806.34/217,716.33 = 93,261.94/x
  3. Step 3: Cross multiply
    157,806.34x = 217,716.33 × 93,261.94
  4. Step 4: Simplify right side
    157,806.34x = 20,304,647,305.48
  5. Step 5: Solve for x
    x = 20,304,647,305.48/157,806.34
  6. Step 6: Final answer
    x = 128,668.13

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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.