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Finding the Fourth Proportional to 404,660.40, 606,922.42 and 148,440.12

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Solution

The fourth proportional to 404,660.40, 606,922.42 and 148,440.12 is: 222,635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,660.40 : 606,922.42 = 148,440.12 : x
  2. Step 2: Convert to fraction form
    404,660.40/606,922.42 = 148,440.12/x
  3. Step 3: Cross multiply
    404,660.40x = 606,922.42 × 148,440.12
  4. Step 4: Simplify right side
    404,660.40x = 90,091,636,855.49
  5. Step 5: Solve for x
    x = 90,091,636,855.49/404,660.40
  6. Step 6: Final answer
    x = 222,635.17

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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.