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Finding the Fourth Proportional to 72,089.55, 108,144.70 and 22,173.84

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Solution

The fourth proportional to 72,089.55, 108,144.70 and 22,173.84 is: 33,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,089.55 : 108,144.70 = 22,173.84 : x
  2. Step 2: Convert to fraction form
    72,089.55/108,144.70 = 22,173.84/x
  3. Step 3: Cross multiply
    72,089.55x = 108,144.70 × 22,173.84
  4. Step 4: Simplify right side
    72,089.55x = 2,397,983,219.21
  5. Step 5: Solve for x
    x = 2,397,983,219.21/72,089.55
  6. Step 6: Final answer
    x = 33,263.95

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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.