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Finding the Fourth Proportional to 126,323.62, 174,355.91 and 83,310.90

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Solution

The fourth proportional to 126,323.62, 174,355.91 and 83,310.90 is: 114,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,323.62 : 174,355.91 = 83,310.90 : x
  2. Step 2: Convert to fraction form
    126,323.62/174,355.91 = 83,310.90/x
  3. Step 3: Cross multiply
    126,323.62x = 174,355.91 × 83,310.90
  4. Step 4: Simplify right side
    126,323.62x = 14,525,747,024.45
  5. Step 5: Solve for x
    x = 14,525,747,024.45/126,323.62
  6. Step 6: Final answer
    x = 114,988.37

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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.