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Finding the Third Proportional to 45,156.75 and 70,320.38

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Solution

The third proportional to 45,156.75 and 70,320.38 is: 109,506.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,156.75 : 70,320.38 = 70,320.38 : x
  2. Step 2: Convert to fraction form
    45,156.75/70,320.38 = 70,320.38/x
  3. Step 3: Cross multiply
    45,156.75x = 70,320.38 × 70,320.38
  4. Step 4: Simplify right side
    45,156.75x = 4,944,955,140.14
  5. Step 5: Solve for x
    x = 4,944,955,140.14/45,156.75
  6. Step 6: Final answer
    x = 109,506.44

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.