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Finding the Fourth Proportional to 73,120.84, 109,685.16 and 23,204.80

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Solution

The fourth proportional to 73,120.84, 109,685.16 and 23,204.80 is: 34,808.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,120.84 : 109,685.16 = 23,204.80 : x
  2. Step 2: Convert to fraction form
    73,120.84/109,685.16 = 23,204.80/x
  3. Step 3: Cross multiply
    73,120.84x = 109,685.16 × 23,204.80
  4. Step 4: Simplify right side
    73,120.84x = 2,545,222,200.77
  5. Step 5: Solve for x
    x = 2,545,222,200.77/73,120.84
  6. Step 6: Final answer
    x = 34,808.44

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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.