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Finding the Fourth Proportional to 68,842.98, 103,089.51 and 63,069.30

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Solution

The fourth proportional to 68,842.98, 103,089.51 and 63,069.30 is: 94,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,842.98 : 103,089.51 = 63,069.30 : x
  2. Step 2: Convert to fraction form
    68,842.98/103,089.51 = 63,069.30/x
  3. Step 3: Cross multiply
    68,842.98x = 103,089.51 × 63,069.30
  4. Step 4: Simplify right side
    68,842.98x = 6,501,783,233.04
  5. Step 5: Solve for x
    x = 6,501,783,233.04/68,842.98
  6. Step 6: Final answer
    x = 94,443.66

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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.