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Finding the Fourth Proportional to 315,396.82, 473,157.42 and 115,719.04

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Solution

The fourth proportional to 315,396.82, 473,157.42 and 115,719.04 is: 173,601.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,396.82 : 473,157.42 = 115,719.04 : x
  2. Step 2: Convert to fraction form
    315,396.82/473,157.42 = 115,719.04/x
  3. Step 3: Cross multiply
    315,396.82x = 473,157.42 × 115,719.04
  4. Step 4: Simplify right side
    315,396.82x = 54,753,322,411.28
  5. Step 5: Solve for x
    x = 54,753,322,411.28/315,396.82
  6. Step 6: Final answer
    x = 173,601.38

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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.