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Finding the Fourth Proportional to 79,369.32, 109,529.57 and 43,559.42

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Solution

The fourth proportional to 79,369.32, 109,529.57 and 43,559.42 is: 60,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,369.32 : 109,529.57 = 43,559.42 : x
  2. Step 2: Convert to fraction form
    79,369.32/109,529.57 = 43,559.42/x
  3. Step 3: Cross multiply
    79,369.32x = 109,529.57 × 43,559.42
  4. Step 4: Simplify right side
    79,369.32x = 4,771,044,924.77
  5. Step 5: Solve for x
    x = 4,771,044,924.77/79,369.32
  6. Step 6: Final answer
    x = 60,111.95

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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.