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Finding the Fourth Proportional to 124,960.87, 172,448.49 and 68,373.46

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Solution

The fourth proportional to 124,960.87, 172,448.49 and 68,373.46 is: 94,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,960.87 : 172,448.49 = 68,373.46 : x
  2. Step 2: Convert to fraction form
    124,960.87/172,448.49 = 68,373.46/x
  3. Step 3: Cross multiply
    124,960.87x = 172,448.49 × 68,373.46
  4. Step 4: Simplify right side
    124,960.87x = 11,790,899,933.08
  5. Step 5: Solve for x
    x = 11,790,899,933.08/124,960.87
  6. Step 6: Final answer
    x = 94,356.74

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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.