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Finding the Fourth Proportional to 141,711.76, 195,643.56 and 94,029.76

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Solution

The fourth proportional to 141,711.76, 195,643.56 and 94,029.76 is: 129,815.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,711.76 : 195,643.56 = 94,029.76 : x
  2. Step 2: Convert to fraction form
    141,711.76/195,643.56 = 94,029.76/x
  3. Step 3: Cross multiply
    141,711.76x = 195,643.56 × 94,029.76
  4. Step 4: Simplify right side
    141,711.76x = 18,396,316,992.35
  5. Step 5: Solve for x
    x = 18,396,316,992.35/141,711.76
  6. Step 6: Final answer
    x = 129,815.03

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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.