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Finding the Fourth Proportional to 68,751.35, 103,284.91 and 48,534.59

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Solution

The fourth proportional to 68,751.35, 103,284.91 and 48,534.59 is: 72,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,751.35 : 103,284.91 = 48,534.59 : x
  2. Step 2: Convert to fraction form
    68,751.35/103,284.91 = 48,534.59/x
  3. Step 3: Cross multiply
    68,751.35x = 103,284.91 × 48,534.59
  4. Step 4: Simplify right side
    68,751.35x = 5,012,890,304.28
  5. Step 5: Solve for x
    x = 5,012,890,304.28/68,751.35
  6. Step 6: Final answer
    x = 72,913.34

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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.