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Finding the Fourth Proportional to 281,179.81, 387,782.81 and 199,346.39

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Solution

The fourth proportional to 281,179.81, 387,782.81 and 199,346.39 is: 274,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,179.81 : 387,782.81 = 199,346.39 : x
  2. Step 2: Convert to fraction form
    281,179.81/387,782.81 = 199,346.39/x
  3. Step 3: Cross multiply
    281,179.81x = 387,782.81 × 199,346.39
  4. Step 4: Simplify right side
    281,179.81x = 77,303,101,338.64
  5. Step 5: Solve for x
    x = 77,303,101,338.64/281,179.81
  6. Step 6: Final answer
    x = 274,924.09

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1.5x scale

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.