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Finding the Fourth Proportional to 78,614.45, 117,913.47 and 22,450.92

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Solution

The fourth proportional to 78,614.45, 117,913.47 and 22,450.92 is: 33,674.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,614.45 : 117,913.47 = 22,450.92 : x
  2. Step 2: Convert to fraction form
    78,614.45/117,913.47 = 22,450.92/x
  3. Step 3: Cross multiply
    78,614.45x = 117,913.47 × 22,450.92
  4. Step 4: Simplify right side
    78,614.45x = 2,647,266,145.08
  5. Step 5: Solve for x
    x = 2,647,266,145.08/78,614.45
  6. Step 6: Final answer
    x = 33,674.04

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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.