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Finding the Fourth Proportional to 170,483.20, 255,724.44 and 45,824.20

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Solution

The fourth proportional to 170,483.20, 255,724.44 and 45,824.20 is: 68,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,483.20 : 255,724.44 = 45,824.20 : x
  2. Step 2: Convert to fraction form
    170,483.20/255,724.44 = 45,824.20/x
  3. Step 3: Cross multiply
    170,483.20x = 255,724.44 × 45,824.20
  4. Step 4: Simplify right side
    170,483.20x = 11,718,367,883.45
  5. Step 5: Solve for x
    x = 11,718,367,883.45/170,483.20
  6. Step 6: Final answer
    x = 68,736.20

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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.