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Finding the Fourth Proportional to 79,613.60, 109,864.44 and 43,803.60

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Solution

The fourth proportional to 79,613.60, 109,864.44 and 43,803.60 is: 60,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,613.60 : 109,864.44 = 43,803.60 : x
  2. Step 2: Convert to fraction form
    79,613.60/109,864.44 = 43,803.60/x
  3. Step 3: Cross multiply
    79,613.60x = 109,864.44 × 43,803.60
  4. Step 4: Simplify right side
    79,613.60x = 4,812,457,983.98
  5. Step 5: Solve for x
    x = 4,812,457,983.98/79,613.60
  6. Step 6: Final answer
    x = 60,447.69

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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.