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Finding the Fourth Proportional to 132,977.60, 199,077.60 and 129,089.60

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Solution

The fourth proportional to 132,977.60, 199,077.60 and 129,089.60 is: 193,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,977.60 : 199,077.60 = 129,089.60 : x
  2. Step 2: Convert to fraction form
    132,977.60/199,077.60 = 129,089.60/x
  3. Step 3: Cross multiply
    132,977.60x = 199,077.60 × 129,089.60
  4. Step 4: Simplify right side
    132,977.60x = 25,698,847,752.96
  5. Step 5: Solve for x
    x = 25,698,847,752.96/132,977.60
  6. Step 6: Final answer
    x = 193,256.97

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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.