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Finding the Fourth Proportional to 306,859.50, 423,466.17 and 179,559.54

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Solution

The fourth proportional to 306,859.50, 423,466.17 and 179,559.54 is: 247,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,859.50 : 423,466.17 = 179,559.54 : x
  2. Step 2: Convert to fraction form
    306,859.50/423,466.17 = 179,559.54/x
  3. Step 3: Cross multiply
    306,859.50x = 423,466.17 × 179,559.54
  4. Step 4: Simplify right side
    306,859.50x = 76,037,390,690.76
  5. Step 5: Solve for x
    x = 76,037,390,690.76/306,859.50
  6. Step 6: Final answer
    x = 247,792.20

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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.