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Finding the Fourth Proportional to 79,586.67, 109,827.28 and 43,776.66

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Solution

The fourth proportional to 79,586.67, 109,827.28 and 43,776.66 is: 60,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,586.67 : 109,827.28 = 43,776.66 : x
  2. Step 2: Convert to fraction form
    79,586.67/109,827.28 = 43,776.66/x
  3. Step 3: Cross multiply
    79,586.67x = 109,827.28 × 43,776.66
  4. Step 4: Simplify right side
    79,586.67x = 4,807,871,495.28
  5. Step 5: Solve for x
    x = 4,807,871,495.28/79,586.67
  6. Step 6: Final answer
    x = 60,410.51

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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.