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Finding the Fourth Proportional to 79,316.96, 109,458.86 and 43,508.80

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Solution

The fourth proportional to 79,316.96, 109,458.86 and 43,508.80 is: 60,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,316.96 : 109,458.86 = 43,508.80 : x
  2. Step 2: Convert to fraction form
    79,316.96/109,458.86 = 43,508.80/x
  3. Step 3: Cross multiply
    79,316.96x = 109,458.86 × 43,508.80
  4. Step 4: Simplify right side
    79,316.96x = 4,762,423,647.97
  5. Step 5: Solve for x
    x = 4,762,423,647.97/79,316.96
  6. Step 6: Final answer
    x = 60,042.94

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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.