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Finding the Fourth Proportional to 405,553.40, 608,282.74 and 125,046.52

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Solution

The fourth proportional to 405,553.40, 608,282.74 and 125,046.52 is: 187,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,553.40 : 608,282.74 = 125,046.52 : x
  2. Step 2: Convert to fraction form
    405,553.40/608,282.74 = 125,046.52/x
  3. Step 3: Cross multiply
    405,553.40x = 608,282.74 × 125,046.52
  4. Step 4: Simplify right side
    405,553.40x = 76,063,639,813.06
  5. Step 5: Solve for x
    x = 76,063,639,813.06/405,553.40
  6. Step 6: Final answer
    x = 187,555.18

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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.