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Finding the Fourth Proportional to 226,735.21, 312,894.89 and 126,133.21

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Solution

The fourth proportional to 226,735.21, 312,894.89 and 126,133.21 is: 174,064.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,735.21 : 312,894.89 = 126,133.21 : x
  2. Step 2: Convert to fraction form
    226,735.21/312,894.89 = 126,133.21/x
  3. Step 3: Cross multiply
    226,735.21x = 312,894.89 × 126,133.21
  4. Step 4: Simplify right side
    226,735.21x = 39,466,436,868.30
  5. Step 5: Solve for x
    x = 39,466,436,868.30/226,735.21
  6. Step 6: Final answer
    x = 174,064.00

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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.