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Finding the Fourth Proportional to 250,311.70, 375,355.32 and 149,157.46

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Solution

The fourth proportional to 250,311.70, 375,355.32 and 149,157.46 is: 223,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,311.70 : 375,355.32 = 149,157.46 : x
  2. Step 2: Convert to fraction form
    250,311.70/375,355.32 = 149,157.46/x
  3. Step 3: Cross multiply
    250,311.70x = 375,355.32 × 149,157.46
  4. Step 4: Simplify right side
    250,311.70x = 55,987,046,128.69
  5. Step 5: Solve for x
    x = 55,987,046,128.69/250,311.70
  6. Step 6: Final answer
    x = 223,669.31

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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.