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Finding the Fourth Proportional to 345,708.75, 477,078.08 and 194,811.15

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Solution

The fourth proportional to 345,708.75, 477,078.08 and 194,811.15 is: 268,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,708.75 : 477,078.08 = 194,811.15 : x
  2. Step 2: Convert to fraction form
    345,708.75/477,078.08 = 194,811.15/x
  3. Step 3: Cross multiply
    345,708.75x = 477,078.08 × 194,811.15
  4. Step 4: Simplify right side
    345,708.75x = 92,940,128,430.54
  5. Step 5: Solve for x
    x = 92,940,128,430.54/345,708.75
  6. Step 6: Final answer
    x = 268,839.39

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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.