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Finding the Fourth Proportional to 239,839.74, 359,696.93 and 71,314.68

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Solution

The fourth proportional to 239,839.74, 359,696.93 and 71,314.68 is: 106,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,839.74 : 359,696.93 = 71,314.68 : x
  2. Step 2: Convert to fraction form
    239,839.74/359,696.93 = 71,314.68/x
  3. Step 3: Cross multiply
    239,839.74x = 359,696.93 × 71,314.68
  4. Step 4: Simplify right side
    239,839.74x = 25,651,671,103.36
  5. Step 5: Solve for x
    x = 25,651,671,103.36/239,839.74
  6. Step 6: Final answer
    x = 106,953.38

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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.