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Finding the Fourth Proportional to 129,788.84, 194,682.04 and 41,042.40

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Solution

The fourth proportional to 129,788.84, 194,682.04 and 41,042.40 is: 61,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,788.84 : 194,682.04 = 41,042.40 : x
  2. Step 2: Convert to fraction form
    129,788.84/194,682.04 = 41,042.40/x
  3. Step 3: Cross multiply
    129,788.84x = 194,682.04 × 41,042.40
  4. Step 4: Simplify right side
    129,788.84x = 7,990,218,158.50
  5. Step 5: Solve for x
    x = 7,990,218,158.50/129,788.84
  6. Step 6: Final answer
    x = 61,563.21

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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.