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Finding the Fourth Proportional to 134,760.60, 201,922.20 and 84,751.20

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Solution

The fourth proportional to 134,760.60, 201,922.20 and 84,751.20 is: 126,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,760.60 : 201,922.20 = 84,751.20 : x
  2. Step 2: Convert to fraction form
    134,760.60/201,922.20 = 84,751.20/x
  3. Step 3: Cross multiply
    134,760.60x = 201,922.20 × 84,751.20
  4. Step 4: Simplify right side
    134,760.60x = 17,113,148,756.64
  5. Step 5: Solve for x
    x = 17,113,148,756.64/134,760.60
  6. Step 6: Final answer
    x = 126,989.26

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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.