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Finding the Fourth Proportional to 118,732.22, 163,850.46 and 65,020.52

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Solution

The fourth proportional to 118,732.22, 163,850.46 and 65,020.52 is: 89,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,732.22 : 163,850.46 = 65,020.52 : x
  2. Step 2: Convert to fraction form
    118,732.22/163,850.46 = 65,020.52/x
  3. Step 3: Cross multiply
    118,732.22x = 163,850.46 × 65,020.52
  4. Step 4: Simplify right side
    118,732.22x = 10,653,642,111.44
  5. Step 5: Solve for x
    x = 10,653,642,111.44/118,732.22
  6. Step 6: Final answer
    x = 89,728.32

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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.