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Finding the Fourth Proportional to 79,525.71, 109,742.18 and 43,712.37

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Solution

The fourth proportional to 79,525.71, 109,742.18 and 43,712.37 is: 60,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,525.71 : 109,742.18 = 43,712.37 : x
  2. Step 2: Convert to fraction form
    79,525.71/109,742.18 = 43,712.37/x
  3. Step 3: Cross multiply
    79,525.71x = 109,742.18 × 43,712.37
  4. Step 4: Simplify right side
    79,525.71x = 4,797,090,558.20
  5. Step 5: Solve for x
    x = 4,797,090,558.20/79,525.71
  6. Step 6: Final answer
    x = 60,321.25

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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.