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Finding the Fourth Proportional to 169,100.10, 253,679.40 and 56,791.20

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Solution

The fourth proportional to 169,100.10, 253,679.40 and 56,791.20 is: 85,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,100.10 : 253,679.40 = 56,791.20 : x
  2. Step 2: Convert to fraction form
    169,100.10/253,679.40 = 56,791.20/x
  3. Step 3: Cross multiply
    169,100.10x = 253,679.40 × 56,791.20
  4. Step 4: Simplify right side
    169,100.10x = 14,406,757,541.28
  5. Step 5: Solve for x
    x = 14,406,757,541.28/169,100.10
  6. Step 6: Final answer
    x = 85,196.62

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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.