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Finding the Fourth Proportional to 79,197.57, 109,292.65 and 47,366.47

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Solution

The fourth proportional to 79,197.57, 109,292.65 and 47,366.47 is: 65,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,197.57 : 109,292.65 = 47,366.47 : x
  2. Step 2: Convert to fraction form
    79,197.57/109,292.65 = 47,366.47/x
  3. Step 3: Cross multiply
    79,197.57x = 109,292.65 × 47,366.47
  4. Step 4: Simplify right side
    79,197.57x = 5,176,807,027.45
  5. Step 5: Solve for x
    x = 5,176,807,027.45/79,197.57
  6. Step 6: Final answer
    x = 65,365.73

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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.