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Finding the Fourth Proportional to 124,950, 172,433.49 and 68,362.59

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Solution

The fourth proportional to 124,950, 172,433.49 and 68,362.59 is: 94,341.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,950 : 172,433.49 = 68,362.59 : x
  2. Step 2: Convert to fraction form
    124,950/172,433.49 = 68,362.59/x
  3. Step 3: Cross multiply
    124,950x = 172,433.49 × 68,362.59
  4. Step 4: Simplify right side
    124,950x = 11,787,999,979.14
  5. Step 5: Solve for x
    x = 11,787,999,979.14/124,950
  6. Step 6: Final answer
    x = 94,341.74

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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.