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Finding the Fourth Proportional to 111,324, 153,627.66 and 66,612

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Solution

The fourth proportional to 111,324, 153,627.66 and 66,612 is: 91,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,324 : 153,627.66 = 66,612 : x
  2. Step 2: Convert to fraction form
    111,324/153,627.66 = 66,612/x
  3. Step 3: Cross multiply
    111,324x = 153,627.66 × 66,612
  4. Step 4: Simplify right side
    111,324x = 10,233,445,687.92
  5. Step 5: Solve for x
    x = 10,233,445,687.92/111,324
  6. Step 6: Final answer
    x = 91,924.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.