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Finding the Fourth Proportional to 111,792.75, 154,275.99 and 60,806.61

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Solution

The fourth proportional to 111,792.75, 154,275.99 and 60,806.61 is: 83,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,792.75 : 154,275.99 = 60,806.61 : x
  2. Step 2: Convert to fraction form
    111,792.75/154,275.99 = 60,806.61/x
  3. Step 3: Cross multiply
    111,792.75x = 154,275.99 × 60,806.61
  4. Step 4: Simplify right side
    111,792.75x = 9,380,999,956.29
  5. Step 5: Solve for x
    x = 9,380,999,956.29/111,792.75
  6. Step 6: Final answer
    x = 83,914.21

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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.