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Finding the Fourth Proportional to 68,858.10, 103,287.15 and 60,110.10

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Solution

The fourth proportional to 68,858.10, 103,287.15 and 60,110.10 is: 90,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,858.10 : 103,287.15 = 60,110.10 : x
  2. Step 2: Convert to fraction form
    68,858.10/103,287.15 = 60,110.10/x
  3. Step 3: Cross multiply
    68,858.10x = 103,287.15 × 60,110.10
  4. Step 4: Simplify right side
    68,858.10x = 6,208,600,915.22
  5. Step 5: Solve for x
    x = 6,208,600,915.22/68,858.10
  6. Step 6: Final answer
    x = 90,165.15

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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.