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Finding the Fourth Proportional to 476,626.52, 714,939.21 and 121,640.58

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Solution

The fourth proportional to 476,626.52, 714,939.21 and 121,640.58 is: 182,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,626.52 : 714,939.21 = 121,640.58 : x
  2. Step 2: Convert to fraction form
    476,626.52/714,939.21 = 121,640.58/x
  3. Step 3: Cross multiply
    476,626.52x = 714,939.21 × 121,640.58
  4. Step 4: Simplify right side
    476,626.52x = 86,965,619,560.94
  5. Step 5: Solve for x
    x = 86,965,619,560.94/476,626.52
  6. Step 6: Final answer
    x = 182,460.72

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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.