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Finding the Fourth Proportional to 338,138.95, 467,117.81 and 270,066.55

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Solution

The fourth proportional to 338,138.95, 467,117.81 and 270,066.55 is: 373,080.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,138.95 : 467,117.81 = 270,066.55 : x
  2. Step 2: Convert to fraction form
    338,138.95/467,117.81 = 270,066.55/x
  3. Step 3: Cross multiply
    338,138.95x = 467,117.81 × 270,066.55
  4. Step 4: Simplify right side
    338,138.95x = 126,152,894,039.92
  5. Step 5: Solve for x
    x = 126,152,894,039.92/338,138.95
  6. Step 6: Final answer
    x = 373,080.04

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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.