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Finding the Fourth Proportional to 68,825.62, 103,232.76 and 48,752.20

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Solution

The fourth proportional to 68,825.62, 103,232.76 and 48,752.20 is: 73,124.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,825.62 : 103,232.76 = 48,752.20 : x
  2. Step 2: Convert to fraction form
    68,825.62/103,232.76 = 48,752.20/x
  3. Step 3: Cross multiply
    68,825.62x = 103,232.76 × 48,752.20
  4. Step 4: Simplify right side
    68,825.62x = 5,032,824,162.07
  5. Step 5: Solve for x
    x = 5,032,824,162.07/68,825.62
  6. Step 6: Final answer
    x = 73,124.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.