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Finding the Fourth Proportional to 261,025, 360,183.94 and 153,571.40

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Solution

The fourth proportional to 261,025, 360,183.94 and 153,571.40 is: 211,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,025 : 360,183.94 = 153,571.40 : x
  2. Step 2: Convert to fraction form
    261,025/360,183.94 = 153,571.40/x
  3. Step 3: Cross multiply
    261,025x = 360,183.94 × 153,571.40
  4. Step 4: Simplify right side
    261,025x = 55,313,951,923.32
  5. Step 5: Solve for x
    x = 55,313,951,923.32/261,025
  6. Step 6: Final answer
    x = 211,910.55

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1.5x scale

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.