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Finding the Fourth Proportional to 144,064.52, 198,794.84 and 79,529.57

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Solution

The fourth proportional to 144,064.52, 198,794.84 and 79,529.57 is: 109,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,064.52 : 198,794.84 = 79,529.57 : x
  2. Step 2: Convert to fraction form
    144,064.52/198,794.84 = 79,529.57/x
  3. Step 3: Cross multiply
    144,064.52x = 198,794.84 × 79,529.57
  4. Step 4: Simplify right side
    144,064.52x = 15,810,068,242.76
  5. Step 5: Solve for x
    x = 15,810,068,242.76/144,064.52
  6. Step 6: Final answer
    x = 109,742.97

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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.