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Finding the Fourth Proportional to 111,684.67, 154,126.35 and 60,698.41

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Solution

The fourth proportional to 111,684.67, 154,126.35 and 60,698.41 is: 83,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,684.67 : 154,126.35 = 60,698.41 : x
  2. Step 2: Convert to fraction form
    111,684.67/154,126.35 = 60,698.41/x
  3. Step 3: Cross multiply
    111,684.67x = 154,126.35 × 60,698.41
  4. Step 4: Simplify right side
    111,684.67x = 9,355,223,998.79
  5. Step 5: Solve for x
    x = 9,355,223,998.79/111,684.67
  6. Step 6: Final answer
    x = 83,764.62

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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.