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Finding the Third Proportional to 72,621.56 and 106,545.38

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Solution

The third proportional to 72,621.56 and 106,545.38 is: 156,316.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621.56 : 106,545.38 = 106,545.38 : x
  2. Step 2: Convert to fraction form
    72,621.56/106,545.38 = 106,545.38/x
  3. Step 3: Cross multiply
    72,621.56x = 106,545.38 × 106,545.38
  4. Step 4: Simplify right side
    72,621.56x = 11,351,916,933.89
  5. Step 5: Solve for x
    x = 11,351,916,933.89/72,621.56
  6. Step 6: Final answer
    x = 156,316.07

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.