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Finding the Third Proportional to 156,282.75 and 242,146.69

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Solution

The third proportional to 156,282.75 and 242,146.69 is: 375,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,282.75 : 242,146.69 = 242,146.69 : x
  2. Step 2: Convert to fraction form
    156,282.75/242,146.69 = 242,146.69/x
  3. Step 3: Cross multiply
    156,282.75x = 242,146.69 × 242,146.69
  4. Step 4: Simplify right side
    156,282.75x = 58,635,018,267.22
  5. Step 5: Solve for x
    x = 58,635,018,267.22/156,282.75
  6. Step 6: Final answer
    x = 375,185.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.