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Finding the Fourth Proportional to 100,943.90, 151,369.72 and 37,717.66

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Solution

The fourth proportional to 100,943.90, 151,369.72 and 37,717.66 is: 56,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,943.90 : 151,369.72 = 37,717.66 : x
  2. Step 2: Convert to fraction form
    100,943.90/151,369.72 = 37,717.66/x
  3. Step 3: Cross multiply
    100,943.90x = 151,369.72 × 37,717.66
  4. Step 4: Simplify right side
    100,943.90x = 5,709,310,687.82
  5. Step 5: Solve for x
    x = 5,709,310,687.82/100,943.90
  6. Step 6: Final answer
    x = 56,559.24

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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.