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Finding the Fourth Proportional to 107,492.62, 161,239.11 and 40,917.46

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Solution

The fourth proportional to 107,492.62, 161,239.11 and 40,917.46 is: 61,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,492.62 : 161,239.11 = 40,917.46 : x
  2. Step 2: Convert to fraction form
    107,492.62/161,239.11 = 40,917.46/x
  3. Step 3: Cross multiply
    107,492.62x = 161,239.11 × 40,917.46
  4. Step 4: Simplify right side
    107,492.62x = 6,597,494,833.86
  5. Step 5: Solve for x
    x = 6,597,494,833.86/107,492.62
  6. Step 6: Final answer
    x = 61,376.26

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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.