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Finding the Fourth Proportional to 104,819.86, 157,191.72 and 45,641.26

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Solution

The fourth proportional to 104,819.86, 157,191.72 and 45,641.26 is: 68,445.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,819.86 : 157,191.72 = 45,641.26 : x
  2. Step 2: Convert to fraction form
    104,819.86/157,191.72 = 45,641.26/x
  3. Step 3: Cross multiply
    104,819.86x = 157,191.72 × 45,641.26
  4. Step 4: Simplify right side
    104,819.86x = 7,174,428,162.37
  5. Step 5: Solve for x
    x = 7,174,428,162.37/104,819.86
  6. Step 6: Final answer
    x = 68,445.31

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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.