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Finding the Fourth Proportional to 234,151.93, 323,130.05 and 126,722.05

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Solution

The fourth proportional to 234,151.93, 323,130.05 and 126,722.05 is: 174,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,151.93 : 323,130.05 = 126,722.05 : x
  2. Step 2: Convert to fraction form
    234,151.93/323,130.05 = 126,722.05/x
  3. Step 3: Cross multiply
    234,151.93x = 323,130.05 × 126,722.05
  4. Step 4: Simplify right side
    234,151.93x = 40,947,702,352.60
  5. Step 5: Solve for x
    x = 40,947,702,352.60/234,151.93
  6. Step 6: Final answer
    x = 174,876.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.