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Finding the Fourth Proportional to 79,722.44, 109,995.08 and 55,496.26

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Solution

The fourth proportional to 79,722.44, 109,995.08 and 55,496.26 is: 76,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,722.44 : 109,995.08 = 55,496.26 : x
  2. Step 2: Convert to fraction form
    79,722.44/109,995.08 = 55,496.26/x
  3. Step 3: Cross multiply
    79,722.44x = 109,995.08 × 55,496.26
  4. Step 4: Simplify right side
    79,722.44x = 6,104,315,558.40
  5. Step 5: Solve for x
    x = 6,104,315,558.40/79,722.44
  6. Step 6: Final answer
    x = 76,569.60

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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.