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Finding the Fourth Proportional to 73,170.30, 109,690.65 and 48,222.30

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Solution

The fourth proportional to 73,170.30, 109,690.65 and 48,222.30 is: 72,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,170.30 : 109,690.65 = 48,222.30 : x
  2. Step 2: Convert to fraction form
    73,170.30/109,690.65 = 48,222.30/x
  3. Step 3: Cross multiply
    73,170.30x = 109,690.65 × 48,222.30
  4. Step 4: Simplify right side
    73,170.30x = 5,289,535,431.50
  5. Step 5: Solve for x
    x = 5,289,535,431.50/73,170.30
  6. Step 6: Final answer
    x = 72,290.74

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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.