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Finding the Fourth Proportional to 417,139.56, 625,227.39 and 192,028.01

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Solution

The fourth proportional to 417,139.56, 625,227.39 and 192,028.01 is: 287,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,139.56 : 625,227.39 = 192,028.01 : x
  2. Step 2: Convert to fraction form
    417,139.56/625,227.39 = 192,028.01/x
  3. Step 3: Cross multiply
    417,139.56x = 625,227.39 × 192,028.01
  4. Step 4: Simplify right side
    417,139.56x = 120,061,168,373.06
  5. Step 5: Solve for x
    x = 120,061,168,373.06/417,139.56
  6. Step 6: Final answer
    x = 287,820.14

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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.