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Finding the Fourth Proportional to 79,197.45, 109,292.47 and 47,366.35

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Solution

The fourth proportional to 79,197.45, 109,292.47 and 47,366.35 is: 65,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,197.45 : 109,292.47 = 47,366.35 : x
  2. Step 2: Convert to fraction form
    79,197.45/109,292.47 = 47,366.35/x
  3. Step 3: Cross multiply
    79,197.45x = 109,292.47 × 47,366.35
  4. Step 4: Simplify right side
    79,197.45x = 5,176,785,386.38
  5. Step 5: Solve for x
    x = 5,176,785,386.38/79,197.45
  6. Step 6: Final answer
    x = 65,365.56

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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.