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Finding the Fourth Proportional to 472,453.75, 708,680.63 and 140,029.75

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Solution

The fourth proportional to 472,453.75, 708,680.63 and 140,029.75 is: 210,044.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,453.75 : 708,680.63 = 140,029.75 : x
  2. Step 2: Convert to fraction form
    472,453.75/708,680.63 = 140,029.75/x
  3. Step 3: Cross multiply
    472,453.75x = 708,680.63 × 140,029.75
  4. Step 4: Simplify right side
    472,453.75x = 99,236,371,448.74
  5. Step 5: Solve for x
    x = 99,236,371,448.74/472,453.75
  6. Step 6: Final answer
    x = 210,044.63

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Similar ratio
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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.