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Finding the Fourth Proportional to 79,364.46, 109,526.12 and 43,555.76

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Solution

The fourth proportional to 79,364.46, 109,526.12 and 43,555.76 is: 60,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,364.46 : 109,526.12 = 43,555.76 : x
  2. Step 2: Convert to fraction form
    79,364.46/109,526.12 = 43,555.76/x
  3. Step 3: Cross multiply
    79,364.46x = 109,526.12 × 43,555.76
  4. Step 4: Simplify right side
    79,364.46x = 4,770,492,631.04
  5. Step 5: Solve for x
    x = 4,770,492,631.04/79,364.46
  6. Step 6: Final answer
    x = 60,108.68

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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.