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Finding the Fourth Proportional to 106,662.84, 147,174.36 and 64,224.12

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Solution

The fourth proportional to 106,662.84, 147,174.36 and 64,224.12 is: 88,617.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,662.84 : 147,174.36 = 64,224.12 : x
  2. Step 2: Convert to fraction form
    106,662.84/147,174.36 = 64,224.12/x
  3. Step 3: Cross multiply
    106,662.84x = 147,174.36 × 64,224.12
  4. Step 4: Simplify right side
    106,662.84x = 9,452,143,757.56
  5. Step 5: Solve for x
    x = 9,452,143,757.56/106,662.84
  6. Step 6: Final answer
    x = 88,617.03

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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.