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Finding the Third Proportional to 104,878.13 and 157,315.50

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Solution

The third proportional to 104,878.13 and 157,315.50 is: 235,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,878.13 : 157,315.50 = 157,315.50 : x
  2. Step 2: Convert to fraction form
    104,878.13/157,315.50 = 157,315.50/x
  3. Step 3: Cross multiply
    104,878.13x = 157,315.50 × 157,315.50
  4. Step 4: Simplify right side
    104,878.13x = 24,748,166,540.25
  5. Step 5: Solve for x
    x = 24,748,166,540.25/104,878.13
  6. Step 6: Final answer
    x = 235,970.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.