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Finding the Fourth Proportional to 79,363.51, 109,522.47 and 43,555.84

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Solution

The fourth proportional to 79,363.51, 109,522.47 and 43,555.84 is: 60,107.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,363.51 : 109,522.47 = 43,555.84 : x
  2. Step 2: Convert to fraction form
    79,363.51/109,522.47 = 43,555.84/x
  3. Step 3: Cross multiply
    79,363.51x = 109,522.47 × 43,555.84
  4. Step 4: Simplify right side
    79,363.51x = 4,770,343,179.72
  5. Step 5: Solve for x
    x = 4,770,343,179.72/79,363.51
  6. Step 6: Final answer
    x = 60,107.51

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1.5x scale

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.