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Finding the Fourth Proportional to 68,991.51, 103,400.69 and 29,502.19

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Solution

The fourth proportional to 68,991.51, 103,400.69 and 29,502.19 is: 44,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,991.51 : 103,400.69 = 29,502.19 : x
  2. Step 2: Convert to fraction form
    68,991.51/103,400.69 = 29,502.19/x
  3. Step 3: Cross multiply
    68,991.51x = 103,400.69 × 29,502.19
  4. Step 4: Simplify right side
    68,991.51x = 3,050,546,285.51
  5. Step 5: Solve for x
    x = 3,050,546,285.51/68,991.51
  6. Step 6: Final answer
    x = 44,216.26

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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.