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Finding the Fourth Proportional to 79,561.72, 109,795.98 and 43,752

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Solution

The fourth proportional to 79,561.72, 109,795.98 and 43,752 is: 60,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,561.72 : 109,795.98 = 43,752 : x
  2. Step 2: Convert to fraction form
    79,561.72/109,795.98 = 43,752/x
  3. Step 3: Cross multiply
    79,561.72x = 109,795.98 × 43,752
  4. Step 4: Simplify right side
    79,561.72x = 4,803,793,716.96
  5. Step 5: Solve for x
    x = 4,803,793,716.96/79,561.72
  6. Step 6: Final answer
    x = 60,378.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.