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Finding the Fourth Proportional to 263,610.77, 363,783.11 and 142,752.20

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Solution

The fourth proportional to 263,610.77, 363,783.11 and 142,752.20 is: 196,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,610.77 : 363,783.11 = 142,752.20 : x
  2. Step 2: Convert to fraction form
    263,610.77/363,783.11 = 142,752.20/x
  3. Step 3: Cross multiply
    263,610.77x = 363,783.11 × 142,752.20
  4. Step 4: Simplify right side
    263,610.77x = 51,930,836,742.67
  5. Step 5: Solve for x
    x = 51,930,836,742.67/263,610.77
  6. Step 6: Final answer
    x = 196,998.16

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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.