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Finding the Fourth Proportional to 134,401.20, 201,601.80 and 55,474.80

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Solution

The fourth proportional to 134,401.20, 201,601.80 and 55,474.80 is: 83,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,401.20 : 201,601.80 = 55,474.80 : x
  2. Step 2: Convert to fraction form
    134,401.20/201,601.80 = 55,474.80/x
  3. Step 3: Cross multiply
    134,401.20x = 201,601.80 × 55,474.80
  4. Step 4: Simplify right side
    134,401.20x = 11,183,819,534.64
  5. Step 5: Solve for x
    x = 11,183,819,534.64/134,401.20
  6. Step 6: Final answer
    x = 83,212.20

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1.5x scale

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.