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Finding the Fourth Proportional to 218,228.16, 301,324.32 and 170,398.56

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Solution

The fourth proportional to 218,228.16, 301,324.32 and 170,398.56 is: 235,282.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,228.16 : 301,324.32 = 170,398.56 : x
  2. Step 2: Convert to fraction form
    218,228.16/301,324.32 = 170,398.56/x
  3. Step 3: Cross multiply
    218,228.16x = 301,324.32 × 170,398.56
  4. Step 4: Simplify right side
    218,228.16x = 51,345,230,220.98
  5. Step 5: Solve for x
    x = 51,345,230,220.98/218,228.16
  6. Step 6: Final answer
    x = 235,282.33

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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.