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Finding the Fourth Proportional to 171,871.43, 257,803.19 and 101,242.12

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Solution

The fourth proportional to 171,871.43, 257,803.19 and 101,242.12 is: 151,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,871.43 : 257,803.19 = 101,242.12 : x
  2. Step 2: Convert to fraction form
    171,871.43/257,803.19 = 101,242.12/x
  3. Step 3: Cross multiply
    171,871.43x = 257,803.19 × 101,242.12
  4. Step 4: Simplify right side
    171,871.43x = 26,100,541,106.96
  5. Step 5: Solve for x
    x = 26,100,541,106.96/171,871.43
  6. Step 6: Final answer
    x = 151,860.85

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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.