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Finding the Fourth Proportional to 79,406.34, 109,582.12 and 43,597.86

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Solution

The fourth proportional to 79,406.34, 109,582.12 and 43,597.86 is: 60,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,406.34 : 109,582.12 = 43,597.86 : x
  2. Step 2: Convert to fraction form
    79,406.34/109,582.12 = 43,597.86/x
  3. Step 3: Cross multiply
    79,406.34x = 109,582.12 × 43,597.86
  4. Step 4: Simplify right side
    79,406.34x = 4,777,545,926.26
  5. Step 5: Solve for x
    x = 4,777,545,926.26/79,406.34
  6. Step 6: Final answer
    x = 60,165.80

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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.