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Finding the Fourth Proportional to 315,177.42, 472,757.49 and 104,819.34

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Solution

The fourth proportional to 315,177.42, 472,757.49 and 104,819.34 is: 157,226.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,177.42 : 472,757.49 = 104,819.34 : x
  2. Step 2: Convert to fraction form
    315,177.42/472,757.49 = 104,819.34/x
  3. Step 3: Cross multiply
    315,177.42x = 472,757.49 × 104,819.34
  4. Step 4: Simplify right side
    315,177.42x = 49,554,128,081.86
  5. Step 5: Solve for x
    x = 49,554,128,081.86/315,177.42
  6. Step 6: Final answer
    x = 157,226.14

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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.