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Finding the Fourth Proportional to 98,131.44, 147,219 and 35,801.92

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Solution

The fourth proportional to 98,131.44, 147,219 and 35,801.92 is: 53,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,131.44 : 147,219 = 35,801.92 : x
  2. Step 2: Convert to fraction form
    98,131.44/147,219 = 35,801.92/x
  3. Step 3: Cross multiply
    98,131.44x = 147,219 × 35,801.92
  4. Step 4: Simplify right side
    98,131.44x = 5,270,722,860.48
  5. Step 5: Solve for x
    x = 5,270,722,860.48/98,131.44
  6. Step 6: Final answer
    x = 53,710.85

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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.