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Finding the Fourth Proportional to 104,999.90, 157,446.38 and 38,422.76

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Solution

The fourth proportional to 104,999.90, 157,446.38 and 38,422.76 is: 57,614.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,999.90 : 157,446.38 = 38,422.76 : x
  2. Step 2: Convert to fraction form
    104,999.90/157,446.38 = 38,422.76/x
  3. Step 3: Cross multiply
    104,999.90x = 157,446.38 × 38,422.76
  4. Step 4: Simplify right side
    104,999.90x = 6,049,523,780.43
  5. Step 5: Solve for x
    x = 6,049,523,780.43/104,999.90
  6. Step 6: Final answer
    x = 57,614.57

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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.