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Finding the Fourth Proportional to 225,913.22, 338,870.99 and 76,154.82

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Solution

The fourth proportional to 225,913.22, 338,870.99 and 76,154.82 is: 114,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,913.22 : 338,870.99 = 76,154.82 : x
  2. Step 2: Convert to fraction form
    225,913.22/338,870.99 = 76,154.82/x
  3. Step 3: Cross multiply
    225,913.22x = 338,870.99 × 76,154.82
  4. Step 4: Simplify right side
    225,913.22x = 25,806,658,166.29
  5. Step 5: Solve for x
    x = 25,806,658,166.29/225,913.22
  6. Step 6: Final answer
    x = 114,232.62

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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.