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Finding the Fourth Proportional to 169,107.90, 253,665.90 and 56,791.74

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Solution

The fourth proportional to 169,107.90, 253,665.90 and 56,791.74 is: 85,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,107.90 : 253,665.90 = 56,791.74 : x
  2. Step 2: Convert to fraction form
    169,107.90/253,665.90 = 56,791.74/x
  3. Step 3: Cross multiply
    169,107.90x = 253,665.90 × 56,791.74
  4. Step 4: Simplify right side
    169,107.90x = 14,406,127,839.67
  5. Step 5: Solve for x
    x = 14,406,127,839.67/169,107.90
  6. Step 6: Final answer
    x = 85,188.97

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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.