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Finding the Fourth Proportional to 101,797.52, 140,480.61 and 57,085.52

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Solution

The fourth proportional to 101,797.52, 140,480.61 and 57,085.52 is: 78,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,797.52 : 140,480.61 = 57,085.52 : x
  2. Step 2: Convert to fraction form
    101,797.52/140,480.61 = 57,085.52/x
  3. Step 3: Cross multiply
    101,797.52x = 140,480.61 × 57,085.52
  4. Step 4: Simplify right side
    101,797.52x = 8,019,408,671.77
  5. Step 5: Solve for x
    x = 8,019,408,671.77/101,797.52
  6. Step 6: Final answer
    x = 78,778.04

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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.