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Finding the Fourth Proportional to 79,636.74, 109,898.70 and 43,826.74

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Solution

The fourth proportional to 79,636.74, 109,898.70 and 43,826.74 is: 60,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,636.74 : 109,898.70 = 43,826.74 : x
  2. Step 2: Convert to fraction form
    79,636.74/109,898.70 = 43,826.74/x
  3. Step 3: Cross multiply
    79,636.74x = 109,898.70 × 43,826.74
  4. Step 4: Simplify right side
    79,636.74x = 4,816,501,751.24
  5. Step 5: Solve for x
    x = 4,816,501,751.24/79,636.74
  6. Step 6: Final answer
    x = 60,480.90

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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.