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Finding the Fourth Proportional to 150,174.80, 207,264.60 and 85,644.16

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Solution

The fourth proportional to 150,174.80, 207,264.60 and 85,644.16 is: 118,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,174.80 : 207,264.60 = 85,644.16 : x
  2. Step 2: Convert to fraction form
    150,174.80/207,264.60 = 85,644.16/x
  3. Step 3: Cross multiply
    150,174.80x = 207,264.60 × 85,644.16
  4. Step 4: Simplify right side
    150,174.80x = 17,751,002,564.74
  5. Step 5: Solve for x
    x = 17,751,002,564.74/150,174.80
  6. Step 6: Final answer
    x = 118,202.27

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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.