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Finding the Fourth Proportional to 69,068.66, 103,642.70 and 29,084.49

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Solution

The fourth proportional to 69,068.66, 103,642.70 and 29,084.49 is: 43,643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,068.66 : 103,642.70 = 29,084.49 : x
  2. Step 2: Convert to fraction form
    69,068.66/103,642.70 = 29,084.49/x
  3. Step 3: Cross multiply
    69,068.66x = 103,642.70 × 29,084.49
  4. Step 4: Simplify right side
    69,068.66x = 3,014,394,926.30
  5. Step 5: Solve for x
    x = 3,014,394,926.30/69,068.66
  6. Step 6: Final answer
    x = 43,643.46

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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.