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Finding the Third Proportional to 147,548 and 316,134

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Solution

The third proportional to 147,548 and 316,134 is: 677,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,548 : 316,134 = 316,134 : x
  2. Step 2: Convert to fraction form
    147,548/316,134 = 316,134/x
  3. Step 3: Cross multiply
    147,548x = 316,134 × 316,134
  4. Step 4: Simplify right side
    147,548x = 99,940,705,956
  5. Step 5: Solve for x
    x = 99,940,705,956/147,548
  6. Step 6: Final answer
    x = 677,343.68

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.