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Finding the Fourth Proportional to 338,781.65, 467,515.49 and 185,816.70

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Solution

The fourth proportional to 338,781.65, 467,515.49 and 185,816.70 is: 256,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,781.65 : 467,515.49 = 185,816.70 : x
  2. Step 2: Convert to fraction form
    338,781.65/467,515.49 = 185,816.70/x
  3. Step 3: Cross multiply
    338,781.65x = 467,515.49 × 185,816.70
  4. Step 4: Simplify right side
    338,781.65x = 86,872,184,621.60
  5. Step 5: Solve for x
    x = 86,872,184,621.60/338,781.65
  6. Step 6: Final answer
    x = 256,425.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.