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Finding the Fourth Proportional to 111,606.74, 154,018.44 and 60,619.96

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Solution

The fourth proportional to 111,606.74, 154,018.44 and 60,619.96 is: 83,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,606.74 : 154,018.44 = 60,619.96 : x
  2. Step 2: Convert to fraction form
    111,606.74/154,018.44 = 60,619.96/x
  3. Step 3: Cross multiply
    111,606.74x = 154,018.44 × 60,619.96
  4. Step 4: Simplify right side
    111,606.74x = 9,336,591,672.06
  5. Step 5: Solve for x
    x = 9,336,591,672.06/111,606.74
  6. Step 6: Final answer
    x = 83,656.16

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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.