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Finding the Fourth Proportional to 263,910.88, 364,201.68 and 143,056.18

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Solution

The fourth proportional to 263,910.88, 364,201.68 and 143,056.18 is: 197,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,910.88 : 364,201.68 = 143,056.18 : x
  2. Step 2: Convert to fraction form
    263,910.88/364,201.68 = 143,056.18/x
  3. Step 3: Cross multiply
    263,910.88x = 364,201.68 × 143,056.18
  4. Step 4: Simplify right side
    263,910.88x = 52,101,301,090.38
  5. Step 5: Solve for x
    x = 52,101,301,090.38/263,910.88
  6. Step 6: Final answer
    x = 197,420.06

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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.