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Finding the Fourth Proportional to 79,263.57, 118,895.58 and 20,099.28

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Solution

The fourth proportional to 79,263.57, 118,895.58 and 20,099.28 is: 30,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263.57 : 118,895.58 = 20,099.28 : x
  2. Step 2: Convert to fraction form
    79,263.57/118,895.58 = 20,099.28/x
  3. Step 3: Cross multiply
    79,263.57x = 118,895.58 × 20,099.28
  4. Step 4: Simplify right side
    79,263.57x = 2,389,715,553.18
  5. Step 5: Solve for x
    x = 2,389,715,553.18/79,263.57
  6. Step 6: Final answer
    x = 30,148.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.