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Finding the Fourth Proportional to 79,367.70, 109,532.35 and 52,463.55

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Solution

The fourth proportional to 79,367.70, 109,532.35 and 52,463.55 is: 72,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,367.70 : 109,532.35 = 52,463.55 : x
  2. Step 2: Convert to fraction form
    79,367.70/109,532.35 = 52,463.55/x
  3. Step 3: Cross multiply
    79,367.70x = 109,532.35 × 52,463.55
  4. Step 4: Simplify right side
    79,367.70x = 5,746,455,920.84
  5. Step 5: Solve for x
    x = 5,746,455,920.84/79,367.70
  6. Step 6: Final answer
    x = 72,402.95

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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.