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Finding the Fourth Proportional to 79,086.98, 109,140.01 and 43,276.97

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Solution

The fourth proportional to 79,086.98, 109,140.01 and 43,276.97 is: 59,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,086.98 : 109,140.01 = 43,276.97 : x
  2. Step 2: Convert to fraction form
    79,086.98/109,140.01 = 43,276.97/x
  3. Step 3: Cross multiply
    79,086.98x = 109,140.01 × 43,276.97
  4. Step 4: Simplify right side
    79,086.98x = 4,723,249,103.23
  5. Step 5: Solve for x
    x = 4,723,249,103.23/79,086.98
  6. Step 6: Final answer
    x = 59,722.21

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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.