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Finding the Fourth Proportional to 266,431.96, 367,664.70 and 145,571.32

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Solution

The fourth proportional to 266,431.96, 367,664.70 and 145,571.32 is: 200,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,431.96 : 367,664.70 = 145,571.32 : x
  2. Step 2: Convert to fraction form
    266,431.96/367,664.70 = 145,571.32/x
  3. Step 3: Cross multiply
    266,431.96x = 367,664.70 × 145,571.32
  4. Step 4: Simplify right side
    266,431.96x = 53,521,435,696.40
  5. Step 5: Solve for x
    x = 53,521,435,696.40/266,431.96
  6. Step 6: Final answer
    x = 200,882.19

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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.