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Finding the Fourth Proportional to 217,005.42, 325,718.23 and 104,764.42

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Solution

The fourth proportional to 217,005.42, 325,718.23 and 104,764.42 is: 157,248.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,005.42 : 325,718.23 = 104,764.42 : x
  2. Step 2: Convert to fraction form
    217,005.42/325,718.23 = 104,764.42/x
  3. Step 3: Cross multiply
    217,005.42x = 325,718.23 × 104,764.42
  4. Step 4: Simplify right side
    217,005.42x = 34,123,680,662.01
  5. Step 5: Solve for x
    x = 34,123,680,662.01/217,005.42
  6. Step 6: Final answer
    x = 157,248.06

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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.