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Finding the Fourth Proportional to 79,670.66, 109,944.66 and 43,859.96

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Solution

The fourth proportional to 79,670.66, 109,944.66 and 43,859.96 is: 60,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,670.66 : 109,944.66 = 43,859.96 : x
  2. Step 2: Convert to fraction form
    79,670.66/109,944.66 = 43,859.96/x
  3. Step 3: Cross multiply
    79,670.66x = 109,944.66 × 43,859.96
  4. Step 4: Simplify right side
    79,670.66x = 4,822,168,389.81
  5. Step 5: Solve for x
    x = 4,822,168,389.81/79,670.66
  6. Step 6: Final answer
    x = 60,526.28

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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.