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Finding the Fourth Proportional to 79,778.88, 119,668.48 and 29,856.96

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Solution

The fourth proportional to 79,778.88, 119,668.48 and 29,856.96 is: 44,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,778.88 : 119,668.48 = 29,856.96 : x
  2. Step 2: Convert to fraction form
    79,778.88/119,668.48 = 29,856.96/x
  3. Step 3: Cross multiply
    79,778.88x = 119,668.48 × 29,856.96
  4. Step 4: Simplify right side
    79,778.88x = 3,572,937,020.62
  5. Step 5: Solve for x
    x = 3,572,937,020.62/79,778.88
  6. Step 6: Final answer
    x = 44,785.50

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1.5x scale

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.