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Finding the Fourth Proportional to 141,125.43, 194,751.44 and 76,594.78

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Solution

The fourth proportional to 141,125.43, 194,751.44 and 76,594.78 is: 105,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,125.43 : 194,751.44 = 76,594.78 : x
  2. Step 2: Convert to fraction form
    141,125.43/194,751.44 = 76,594.78/x
  3. Step 3: Cross multiply
    141,125.43x = 194,751.44 × 76,594.78
  4. Step 4: Simplify right side
    141,125.43x = 14,916,943,701.48
  5. Step 5: Solve for x
    x = 14,916,943,701.48/141,125.43
  6. Step 6: Final answer
    x = 105,699.90

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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.