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Finding the Fourth Proportional to 124,752.16, 172,154.16 and 68,163.46

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Solution

The fourth proportional to 124,752.16, 172,154.16 and 68,163.46 is: 94,063.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,752.16 : 172,154.16 = 68,163.46 : x
  2. Step 2: Convert to fraction form
    124,752.16/172,154.16 = 68,163.46/x
  3. Step 3: Cross multiply
    124,752.16x = 172,154.16 × 68,163.46
  4. Step 4: Simplify right side
    124,752.16x = 11,734,623,198.99
  5. Step 5: Solve for x
    x = 11,734,623,198.99/124,752.16
  6. Step 6: Final answer
    x = 94,063.49

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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.