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Finding the Fourth Proportional to 208,776.36, 313,330.56 and 75,694.68

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Solution

The fourth proportional to 208,776.36, 313,330.56 and 75,694.68 is: 113,602.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,776.36 : 313,330.56 = 75,694.68 : x
  2. Step 2: Convert to fraction form
    208,776.36/313,330.56 = 75,694.68/x
  3. Step 3: Cross multiply
    208,776.36x = 313,330.56 × 75,694.68
  4. Step 4: Simplify right side
    208,776.36x = 23,717,456,473.42
  5. Step 5: Solve for x
    x = 23,717,456,473.42/208,776.36
  6. Step 6: Final answer
    x = 113,602.21

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1.5x scale

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.