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Finding the Fourth Proportional to 209,035.44, 313,552.56 and 75,915.16

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Solution

The fourth proportional to 209,035.44, 313,552.56 and 75,915.16 is: 113,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,035.44 : 313,552.56 = 75,915.16 : x
  2. Step 2: Convert to fraction form
    209,035.44/313,552.56 = 75,915.16/x
  3. Step 3: Cross multiply
    209,035.44x = 313,552.56 × 75,915.16
  4. Step 4: Simplify right side
    209,035.44x = 23,803,392,760.81
  5. Step 5: Solve for x
    x = 23,803,392,760.81/209,035.44
  6. Step 6: Final answer
    x = 113,872.52

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1.5x scale

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.