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Finding the Fourth Proportional to 68,995.76, 103,407.06 and 29,506.44

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Solution

The fourth proportional to 68,995.76, 103,407.06 and 29,506.44 is: 44,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,995.76 : 103,407.06 = 29,506.44 : x
  2. Step 2: Convert to fraction form
    68,995.76/103,407.06 = 29,506.44/x
  3. Step 3: Cross multiply
    68,995.76x = 103,407.06 × 29,506.44
  4. Step 4: Simplify right side
    68,995.76x = 3,051,174,211.47
  5. Step 5: Solve for x
    x = 3,051,174,211.47/68,995.76
  6. Step 6: Final answer
    x = 44,222.63

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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.