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Finding the Fourth Proportional to 79,347.80, 109,496.30 and 43,536.92

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Solution

The fourth proportional to 79,347.80, 109,496.30 and 43,536.92 is: 60,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,347.80 : 109,496.30 = 43,536.92 : x
  2. Step 2: Convert to fraction form
    79,347.80/109,496.30 = 43,536.92/x
  3. Step 3: Cross multiply
    79,347.80x = 109,496.30 × 43,536.92
  4. Step 4: Simplify right side
    79,347.80x = 4,767,131,653.40
  5. Step 5: Solve for x
    x = 4,767,131,653.40/79,347.80
  6. Step 6: Final answer
    x = 60,078.94

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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.