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Finding the Fourth Proportional to 263,911.88, 364,203.06 and 143,057.18

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Solution

The fourth proportional to 263,911.88, 364,203.06 and 143,057.18 is: 197,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,911.88 : 364,203.06 = 143,057.18 : x
  2. Step 2: Convert to fraction form
    263,911.88/364,203.06 = 143,057.18/x
  3. Step 3: Cross multiply
    263,911.88x = 364,203.06 × 143,057.18
  4. Step 4: Simplify right side
    263,911.88x = 52,101,862,710.97
  5. Step 5: Solve for x
    x = 52,101,862,710.97/263,911.88
  6. Step 6: Final answer
    x = 197,421.44

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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.