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Finding the Fourth Proportional to 203,627.75, 305,459.57 and 75,545.51

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Solution

The fourth proportional to 203,627.75, 305,459.57 and 75,545.51 is: 113,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,627.75 : 305,459.57 = 75,545.51 : x
  2. Step 2: Convert to fraction form
    203,627.75/305,459.57 = 75,545.51/x
  3. Step 3: Cross multiply
    203,627.75x = 305,459.57 × 75,545.51
  4. Step 4: Simplify right side
    203,627.75x = 23,076,097,661.60
  5. Step 5: Solve for x
    x = 23,076,097,661.60/203,627.75
  6. Step 6: Final answer
    x = 113,324.92

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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.