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Finding the Fourth Proportional to 523,991.17, 786,139.85 and 168,997.33

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Solution

The fourth proportional to 523,991.17, 786,139.85 and 168,997.33 is: 253,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,991.17 : 786,139.85 = 168,997.33 : x
  2. Step 2: Convert to fraction form
    523,991.17/786,139.85 = 168,997.33/x
  3. Step 3: Cross multiply
    523,991.17x = 786,139.85 × 168,997.33
  4. Step 4: Simplify right side
    523,991.17x = 132,855,535,656.60
  5. Step 5: Solve for x
    x = 132,855,535,656.60/523,991.17
  6. Step 6: Final answer
    x = 253,545.37

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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.