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Finding the Fourth Proportional to 315,418.88, 473,134.96 and 113,028.17

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Solution

The fourth proportional to 315,418.88, 473,134.96 and 113,028.17 is: 169,544.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,418.88 : 473,134.96 = 113,028.17 : x
  2. Step 2: Convert to fraction form
    315,418.88/473,134.96 = 113,028.17/x
  3. Step 3: Cross multiply
    315,418.88x = 473,134.96 × 113,028.17
  4. Step 4: Simplify right side
    315,418.88x = 53,477,578,691.82
  5. Step 5: Solve for x
    x = 53,477,578,691.82/315,418.88
  6. Step 6: Final answer
    x = 169,544.63

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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.