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Finding the Fourth Proportional to 73,330.48, 109,917 and 48,020.32

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Solution

The fourth proportional to 73,330.48, 109,917 and 48,020.32 is: 71,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,330.48 : 109,917 = 48,020.32 : x
  2. Step 2: Convert to fraction form
    73,330.48/109,917 = 48,020.32/x
  3. Step 3: Cross multiply
    73,330.48x = 109,917 × 48,020.32
  4. Step 4: Simplify right side
    73,330.48x = 5,278,249,513.44
  5. Step 5: Solve for x
    x = 5,278,249,513.44/73,330.48
  6. Step 6: Final answer
    x = 71,978.93

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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.