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Finding the Fourth Proportional to 107,473.31, 161,211.51 and 40,917.09

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Solution

The fourth proportional to 107,473.31, 161,211.51 and 40,917.09 is: 61,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,473.31 : 161,211.51 = 40,917.09 : x
  2. Step 2: Convert to fraction form
    107,473.31/161,211.51 = 40,917.09/x
  3. Step 3: Cross multiply
    107,473.31x = 161,211.51 × 40,917.09
  4. Step 4: Simplify right side
    107,473.31x = 6,596,305,863.71
  5. Step 5: Solve for x
    x = 6,596,305,863.71/107,473.31
  6. Step 6: Final answer
    x = 61,376.22

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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.