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Finding the Fourth Proportional to 124,208.28, 171,401.76 and 67,619.52

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Solution

The fourth proportional to 124,208.28, 171,401.76 and 67,619.52 is: 93,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,208.28 : 171,401.76 = 67,619.52 : x
  2. Step 2: Convert to fraction form
    124,208.28/171,401.76 = 67,619.52/x
  3. Step 3: Cross multiply
    124,208.28x = 171,401.76 × 67,619.52
  4. Step 4: Simplify right side
    124,208.28x = 11,590,104,738.36
  5. Step 5: Solve for x
    x = 11,590,104,738.36/124,208.28
  6. Step 6: Final answer
    x = 93,311.85

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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.