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Finding the Third Proportional to 148,290.75 and 316,446.75

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Solution

The third proportional to 148,290.75 and 316,446.75 is: 675,285.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,290.75 : 316,446.75 = 316,446.75 : x
  2. Step 2: Convert to fraction form
    148,290.75/316,446.75 = 316,446.75/x
  3. Step 3: Cross multiply
    148,290.75x = 316,446.75 × 316,446.75
  4. Step 4: Simplify right side
    148,290.75x = 100,138,545,585.56
  5. Step 5: Solve for x
    x = 100,138,545,585.56/148,290.75
  6. Step 6: Final answer
    x = 675,285.18

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.