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Finding the Fourth Proportional to 126,900.96, 190,077.36 and 119,448

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Solution

The fourth proportional to 126,900.96, 190,077.36 and 119,448 is: 178,914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,900.96 : 190,077.36 = 119,448 : x
  2. Step 2: Convert to fraction form
    126,900.96/190,077.36 = 119,448/x
  3. Step 3: Cross multiply
    126,900.96x = 190,077.36 × 119,448
  4. Step 4: Simplify right side
    126,900.96x = 22,704,360,497.28
  5. Step 5: Solve for x
    x = 22,704,360,497.28/126,900.96
  6. Step 6: Final answer
    x = 178,914.02

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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.