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Finding the Fourth Proportional to 79,368.68, 109,525.34 and 43,559.30

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Solution

The fourth proportional to 79,368.68, 109,525.34 and 43,559.30 is: 60,109.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,368.68 : 109,525.34 = 43,559.30 : x
  2. Step 2: Convert to fraction form
    79,368.68/109,525.34 = 43,559.30/x
  3. Step 3: Cross multiply
    79,368.68x = 109,525.34 × 43,559.30
  4. Step 4: Simplify right side
    79,368.68x = 4,770,846,703.93
  5. Step 5: Solve for x
    x = 4,770,846,703.93/79,368.68
  6. Step 6: Final answer
    x = 60,109.95

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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.