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Finding the Third Proportional to 74,178.75 and 160,669.50

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Solution

The third proportional to 74,178.75 and 160,669.50 is: 348,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,178.75 : 160,669.50 = 160,669.50 : x
  2. Step 2: Convert to fraction form
    74,178.75/160,669.50 = 160,669.50/x
  3. Step 3: Cross multiply
    74,178.75x = 160,669.50 × 160,669.50
  4. Step 4: Simplify right side
    74,178.75x = 25,814,688,230.25
  5. Step 5: Solve for x
    x = 25,814,688,230.25/74,178.75
  6. Step 6: Final answer
    x = 348,006.51

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.