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Finding the Fourth Proportional to 104,805.68, 157,103.46 and 48,685.22

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Solution

The fourth proportional to 104,805.68, 157,103.46 and 48,685.22 is: 72,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,805.68 : 157,103.46 = 48,685.22 : x
  2. Step 2: Convert to fraction form
    104,805.68/157,103.46 = 48,685.22/x
  3. Step 3: Cross multiply
    104,805.68x = 157,103.46 × 48,685.22
  4. Step 4: Simplify right side
    104,805.68x = 7,648,616,512.86
  5. Step 5: Solve for x
    x = 7,648,616,512.86/104,805.68
  6. Step 6: Final answer
    x = 72,979.03

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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.