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Finding the Third Proportional to 147,588.75 and 316,678.50

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Solution

The third proportional to 147,588.75 and 316,678.50 is: 679,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,588.75 : 316,678.50 = 316,678.50 : x
  2. Step 2: Convert to fraction form
    147,588.75/316,678.50 = 316,678.50/x
  3. Step 3: Cross multiply
    147,588.75x = 316,678.50 × 316,678.50
  4. Step 4: Simplify right side
    147,588.75x = 100,285,272,362.25
  5. Step 5: Solve for x
    x = 100,285,272,362.25/147,588.75
  6. Step 6: Final answer
    x = 679,491.31

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.