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Finding the Fourth Proportional to 79,406.96, 109,573.54 and 47,575.04

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Solution

The fourth proportional to 79,406.96, 109,573.54 and 47,575.04 is: 65,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,406.96 : 109,573.54 = 47,575.04 : x
  2. Step 2: Convert to fraction form
    79,406.96/109,573.54 = 47,575.04/x
  3. Step 3: Cross multiply
    79,406.96x = 109,573.54 × 47,575.04
  4. Step 4: Simplify right side
    79,406.96x = 5,212,964,881.64
  5. Step 5: Solve for x
    x = 5,212,964,881.64/79,406.96
  6. Step 6: Final answer
    x = 65,648.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.