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Finding the Fourth Proportional to 100,835.80, 151,253.70 and 41,786.80

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Solution

The fourth proportional to 100,835.80, 151,253.70 and 41,786.80 is: 62,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,835.80 : 151,253.70 = 41,786.80 : x
  2. Step 2: Convert to fraction form
    100,835.80/151,253.70 = 41,786.80/x
  3. Step 3: Cross multiply
    100,835.80x = 151,253.70 × 41,786.80
  4. Step 4: Simplify right side
    100,835.80x = 6,320,408,111.16
  5. Step 5: Solve for x
    x = 6,320,408,111.16/100,835.80
  6. Step 6: Final answer
    x = 62,680.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.