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Finding the Fourth Proportional to 161,893.35, 242,404.25 and 105,593.90

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Solution

The fourth proportional to 161,893.35, 242,404.25 and 105,593.90 is: 158,106.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,893.35 : 242,404.25 = 105,593.90 : x
  2. Step 2: Convert to fraction form
    161,893.35/242,404.25 = 105,593.90/x
  3. Step 3: Cross multiply
    161,893.35x = 242,404.25 × 105,593.90
  4. Step 4: Simplify right side
    161,893.35x = 25,596,408,394.08
  5. Step 5: Solve for x
    x = 25,596,408,394.08/161,893.35
  6. Step 6: Final answer
    x = 158,106.61

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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.