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Finding the Third Proportional to 74,866.50 and 163,800

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Solution

The third proportional to 74,866.50 and 163,800 is: 358,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,866.50 : 163,800 = 163,800 : x
  2. Step 2: Convert to fraction form
    74,866.50/163,800 = 163,800/x
  3. Step 3: Cross multiply
    74,866.50x = 163,800 × 163,800
  4. Step 4: Simplify right side
    74,866.50x = 26,830,440,000
  5. Step 5: Solve for x
    x = 26,830,440,000/74,866.50
  6. Step 6: Final answer
    x = 358,377.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.