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Finding the Fourth Proportional to 190,592.51, 285,829.11 and 68,997.70

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Solution

The fourth proportional to 190,592.51, 285,829.11 and 68,997.70 is: 103,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,592.51 : 285,829.11 = 68,997.70 : x
  2. Step 2: Convert to fraction form
    190,592.51/285,829.11 = 68,997.70/x
  3. Step 3: Cross multiply
    190,592.51x = 285,829.11 × 68,997.70
  4. Step 4: Simplify right side
    190,592.51x = 19,721,552,593.72
  5. Step 5: Solve for x
    x = 19,721,552,593.72/190,592.51
  6. Step 6: Final answer
    x = 103,474.96

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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.