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Finding the Fourth Proportional to 134,392.20, 201,459.90 and 50,129.60

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Solution

The fourth proportional to 134,392.20, 201,459.90 and 50,129.60 is: 75,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,392.20 : 201,459.90 = 50,129.60 : x
  2. Step 2: Convert to fraction form
    134,392.20/201,459.90 = 50,129.60/x
  3. Step 3: Cross multiply
    134,392.20x = 201,459.90 × 50,129.60
  4. Step 4: Simplify right side
    134,392.20x = 10,099,104,203.04
  5. Step 5: Solve for x
    x = 10,099,104,203.04/134,392.20
  6. Step 6: Final answer
    x = 75,146.51

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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.