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Finding the Fourth Proportional to 79,607.60, 109,856.16 and 43,797.60

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Solution

The fourth proportional to 79,607.60, 109,856.16 and 43,797.60 is: 60,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,607.60 : 109,856.16 = 43,797.60 : x
  2. Step 2: Convert to fraction form
    79,607.60/109,856.16 = 43,797.60/x
  3. Step 3: Cross multiply
    79,607.60x = 109,856.16 × 43,797.60
  4. Step 4: Simplify right side
    79,607.60x = 4,811,436,153.22
  5. Step 5: Solve for x
    x = 4,811,436,153.22/79,607.60
  6. Step 6: Final answer
    x = 60,439.41

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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.