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Finding the Fourth Proportional to 161,805.60, 242,593.20 and 61,927.20

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Solution

The fourth proportional to 161,805.60, 242,593.20 and 61,927.20 is: 92,846.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,805.60 : 242,593.20 = 61,927.20 : x
  2. Step 2: Convert to fraction form
    161,805.60/242,593.20 = 61,927.20/x
  3. Step 3: Cross multiply
    161,805.60x = 242,593.20 × 61,927.20
  4. Step 4: Simplify right side
    161,805.60x = 15,023,117,615.04
  5. Step 5: Solve for x
    x = 15,023,117,615.04/161,805.60
  6. Step 6: Final answer
    x = 92,846.71

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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.