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Finding the Fourth Proportional to 79,197.35, 109,294.85 and 43,389.54

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Solution

The fourth proportional to 79,197.35, 109,294.85 and 43,389.54 is: 59,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,197.35 : 109,294.85 = 43,389.54 : x
  2. Step 2: Convert to fraction form
    79,197.35/109,294.85 = 43,389.54/x
  3. Step 3: Cross multiply
    79,197.35x = 109,294.85 × 43,389.54
  4. Step 4: Simplify right side
    79,197.35x = 4,742,253,374.34
  5. Step 5: Solve for x
    x = 4,742,253,374.34/79,197.35
  6. Step 6: Final answer
    x = 59,878.94

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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.