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Finding the Fourth Proportional to 79,513.47, 109,729.44 and 43,214.92

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Solution

The fourth proportional to 79,513.47, 109,729.44 and 43,214.92 is: 59,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,513.47 : 109,729.44 = 43,214.92 : x
  2. Step 2: Convert to fraction form
    79,513.47/109,729.44 = 43,214.92/x
  3. Step 3: Cross multiply
    79,513.47x = 109,729.44 × 43,214.92
  4. Step 4: Simplify right side
    79,513.47x = 4,741,948,696.92
  5. Step 5: Solve for x
    x = 4,741,948,696.92/79,513.47
  6. Step 6: Final answer
    x = 59,637.05

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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.