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Finding the Fourth Proportional to 235,618.19, 325,349.30 and 218,522.87

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Solution

The fourth proportional to 235,618.19, 325,349.30 and 218,522.87 is: 301,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,618.19 : 325,349.30 = 218,522.87 : x
  2. Step 2: Convert to fraction form
    235,618.19/325,349.30 = 218,522.87/x
  3. Step 3: Cross multiply
    235,618.19x = 325,349.30 × 218,522.87
  4. Step 4: Simplify right side
    235,618.19x = 71,096,262,788.49
  5. Step 5: Solve for x
    x = 71,096,262,788.49/235,618.19
  6. Step 6: Final answer
    x = 301,743.52

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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.