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Finding the Fourth Proportional to 79,599.80, 109,843.76 and 43,788.90

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Solution

The fourth proportional to 79,599.80, 109,843.76 and 43,788.90 is: 60,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,599.80 : 109,843.76 = 43,788.90 : x
  2. Step 2: Convert to fraction form
    79,599.80/109,843.76 = 43,788.90/x
  3. Step 3: Cross multiply
    79,599.80x = 109,843.76 × 43,788.90
  4. Step 4: Simplify right side
    79,599.80x = 4,809,937,422.26
  5. Step 5: Solve for x
    x = 4,809,937,422.26/79,599.80
  6. Step 6: Final answer
    x = 60,426.50

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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.