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Finding the Third Proportional to 76,113.50 and 172,151.13

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Solution

The third proportional to 76,113.50 and 172,151.13 is: 389,366.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,113.50 : 172,151.13 = 172,151.13 : x
  2. Step 2: Convert to fraction form
    76,113.50/172,151.13 = 172,151.13/x
  3. Step 3: Cross multiply
    76,113.50x = 172,151.13 × 172,151.13
  4. Step 4: Simplify right side
    76,113.50x = 29,636,009,838.77
  5. Step 5: Solve for x
    x = 29,636,009,838.77/76,113.50
  6. Step 6: Final answer
    x = 389,366.01

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.