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Finding the Fourth Proportional to 191,892.40, 287,579.40 and 169,601.20

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Solution

The fourth proportional to 191,892.40, 287,579.40 and 169,601.20 is: 254,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,892.40 : 287,579.40 = 169,601.20 : x
  2. Step 2: Convert to fraction form
    191,892.40/287,579.40 = 169,601.20/x
  3. Step 3: Cross multiply
    191,892.40x = 287,579.40 × 169,601.20
  4. Step 4: Simplify right side
    191,892.40x = 48,773,811,335.28
  5. Step 5: Solve for x
    x = 48,773,811,335.28/191,892.40
  6. Step 6: Final answer
    x = 254,172.71

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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.