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Finding the Fourth Proportional to 313,583.40, 432,780.30 and 177,626.52

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Solution

The fourth proportional to 313,583.40, 432,780.30 and 177,626.52 is: 245,144.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,583.40 : 432,780.30 = 177,626.52 : x
  2. Step 2: Convert to fraction form
    313,583.40/432,780.30 = 177,626.52/x
  3. Step 3: Cross multiply
    313,583.40x = 432,780.30 × 177,626.52
  4. Step 4: Simplify right side
    313,583.40x = 76,873,258,613.56
  5. Step 5: Solve for x
    x = 76,873,258,613.56/313,583.40
  6. Step 6: Final answer
    x = 245,144.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.