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Finding the Fourth Proportional to 374,412.20, 561,691.20 and 161,179.70

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Solution

The fourth proportional to 374,412.20, 561,691.20 and 161,179.70 is: 241,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,412.20 : 561,691.20 = 161,179.70 : x
  2. Step 2: Convert to fraction form
    374,412.20/561,691.20 = 161,179.70/x
  3. Step 3: Cross multiply
    374,412.20x = 561,691.20 × 161,179.70
  4. Step 4: Simplify right side
    374,412.20x = 90,533,219,108.64
  5. Step 5: Solve for x
    x = 90,533,219,108.64/374,412.20
  6. Step 6: Final answer
    x = 241,800.93

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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.