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Finding the Fourth Proportional to 192,813.76, 266,014.56 and 125,629.12

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Solution

The fourth proportional to 192,813.76, 266,014.56 and 125,629.12 is: 173,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,813.76 : 266,014.56 = 125,629.12 : x
  2. Step 2: Convert to fraction form
    192,813.76/266,014.56 = 125,629.12/x
  3. Step 3: Cross multiply
    192,813.76x = 266,014.56 × 125,629.12
  4. Step 4: Simplify right side
    192,813.76x = 33,419,175,079.99
  5. Step 5: Solve for x
    x = 33,419,175,079.99/192,813.76
  6. Step 6: Final answer
    x = 173,323.60

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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.