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Finding the Fourth Proportional to 79,358.52, 109,515.58 and 43,550.84

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Solution

The fourth proportional to 79,358.52, 109,515.58 and 43,550.84 is: 60,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,358.52 : 109,515.58 = 43,550.84 : x
  2. Step 2: Convert to fraction form
    79,358.52/109,515.58 = 43,550.84/x
  3. Step 3: Cross multiply
    79,358.52x = 109,515.58 × 43,550.84
  4. Step 4: Simplify right side
    79,358.52x = 4,769,495,502.09
  5. Step 5: Solve for x
    x = 4,769,495,502.09/79,358.52
  6. Step 6: Final answer
    x = 60,100.61

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1.5x scale

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.