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Finding the Fourth Proportional to 79,446.42, 109,630.67 and 43,637.94

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Solution

The fourth proportional to 79,446.42, 109,630.67 and 43,637.94 is: 60,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,446.42 : 109,630.67 = 43,637.94 : x
  2. Step 2: Convert to fraction form
    79,446.42/109,630.67 = 43,637.94/x
  3. Step 3: Cross multiply
    79,446.42x = 109,630.67 × 43,637.94
  4. Step 4: Simplify right side
    79,446.42x = 4,784,056,381.43
  5. Step 5: Solve for x
    x = 4,784,056,381.43/79,446.42
  6. Step 6: Final answer
    x = 60,217.39

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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.