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Finding the Fourth Proportional to 90,552.81, 124,960.53 and 50,265.53

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Solution

The fourth proportional to 90,552.81, 124,960.53 and 50,265.53 is: 69,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,552.81 : 124,960.53 = 50,265.53 : x
  2. Step 2: Convert to fraction form
    90,552.81/124,960.53 = 50,265.53/x
  3. Step 3: Cross multiply
    90,552.81x = 124,960.53 × 50,265.53
  4. Step 4: Simplify right side
    90,552.81x = 6,281,206,644.73
  5. Step 5: Solve for x
    x = 6,281,206,644.73/90,552.81
  6. Step 6: Final answer
    x = 69,365.12

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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.