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Finding the Fourth Proportional to 217,553.39, 326,330.69 and 67,798.56

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Solution

The fourth proportional to 217,553.39, 326,330.69 and 67,798.56 is: 101,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,553.39 : 326,330.69 = 67,798.56 : x
  2. Step 2: Convert to fraction form
    217,553.39/326,330.69 = 67,798.56/x
  3. Step 3: Cross multiply
    217,553.39x = 326,330.69 × 67,798.56
  4. Step 4: Simplify right side
    217,553.39x = 22,124,750,526.81
  5. Step 5: Solve for x
    x = 22,124,750,526.81/217,553.39
  6. Step 6: Final answer
    x = 101,698.03

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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.