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Finding the Fourth Proportional to 326,710.07, 490,163.51 and 102,061.43

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Solution

The fourth proportional to 326,710.07, 490,163.51 and 102,061.43 is: 153,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,710.07 : 490,163.51 = 102,061.43 : x
  2. Step 2: Convert to fraction form
    326,710.07/490,163.51 = 102,061.43/x
  3. Step 3: Cross multiply
    326,710.07x = 490,163.51 × 102,061.43
  4. Step 4: Simplify right side
    326,710.07x = 50,026,786,568.76
  5. Step 5: Solve for x
    x = 50,026,786,568.76/326,710.07
  6. Step 6: Final answer
    x = 153,122.88

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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.