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Finding the Fourth Proportional to 71,819.80, 107,661.54 and 25,060.12

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Solution

The fourth proportional to 71,819.80, 107,661.54 and 25,060.12 is: 37,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,819.80 : 107,661.54 = 25,060.12 : x
  2. Step 2: Convert to fraction form
    71,819.80/107,661.54 = 25,060.12/x
  3. Step 3: Cross multiply
    71,819.80x = 107,661.54 × 25,060.12
  4. Step 4: Simplify right side
    71,819.80x = 2,698,011,111.78
  5. Step 5: Solve for x
    x = 2,698,011,111.78/71,819.80
  6. Step 6: Final answer
    x = 37,566.40

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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.