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Finding the Fourth Proportional to 315,662.15, 473,493.18 and 115,896.08

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Solution

The fourth proportional to 315,662.15, 473,493.18 and 115,896.08 is: 173,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,662.15 : 473,493.18 = 115,896.08 : x
  2. Step 2: Convert to fraction form
    315,662.15/473,493.18 = 115,896.08/x
  3. Step 3: Cross multiply
    315,662.15x = 473,493.18 × 115,896.08
  4. Step 4: Simplify right side
    315,662.15x = 54,876,003,468.73
  5. Step 5: Solve for x
    x = 54,876,003,468.73/315,662.15
  6. Step 6: Final answer
    x = 173,844.10

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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.