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Finding the Fourth Proportional to 111,065.64, 153,274.41 and 60,764.64

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Solution

The fourth proportional to 111,065.64, 153,274.41 and 60,764.64 is: 83,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,065.64 : 153,274.41 = 60,764.64 : x
  2. Step 2: Convert to fraction form
    111,065.64/153,274.41 = 60,764.64/x
  3. Step 3: Cross multiply
    111,065.64x = 153,274.41 × 60,764.64
  4. Step 4: Simplify right side
    111,065.64x = 9,313,664,344.86
  5. Step 5: Solve for x
    x = 9,313,664,344.86/111,065.64
  6. Step 6: Final answer
    x = 83,857.30

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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.