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Finding the Fourth Proportional to 336,934.71, 505,400.03 and 84,213.93

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Solution

The fourth proportional to 336,934.71, 505,400.03 and 84,213.93 is: 126,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,934.71 : 505,400.03 = 84,213.93 : x
  2. Step 2: Convert to fraction form
    336,934.71/505,400.03 = 84,213.93/x
  3. Step 3: Cross multiply
    336,934.71x = 505,400.03 × 84,213.93
  4. Step 4: Simplify right side
    336,934.71x = 42,561,722,327.35
  5. Step 5: Solve for x
    x = 42,561,722,327.35/336,934.71
  6. Step 6: Final answer
    x = 126,320.39

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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.