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Finding the Fourth Proportional to 79,543.80, 109,768.98 and 43,733.40

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Solution

The fourth proportional to 79,543.80, 109,768.98 and 43,733.40 is: 60,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,543.80 : 109,768.98 = 43,733.40 : x
  2. Step 2: Convert to fraction form
    79,543.80/109,768.98 = 43,733.40/x
  3. Step 3: Cross multiply
    79,543.80x = 109,768.98 × 43,733.40
  4. Step 4: Simplify right side
    79,543.80x = 4,800,570,709.93
  5. Step 5: Solve for x
    x = 4,800,570,709.93/79,543.80
  6. Step 6: Final answer
    x = 60,351.29

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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.