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Finding the Fourth Proportional to 192,910.68, 289,132.74 and 99,365.40

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Solution

The fourth proportional to 192,910.68, 289,132.74 and 99,365.40 is: 148,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,910.68 : 289,132.74 = 99,365.40 : x
  2. Step 2: Convert to fraction form
    192,910.68/289,132.74 = 99,365.40/x
  3. Step 3: Cross multiply
    192,910.68x = 289,132.74 × 99,365.40
  4. Step 4: Simplify right side
    192,910.68x = 28,729,790,363.20
  5. Step 5: Solve for x
    x = 28,729,790,363.20/192,910.68
  6. Step 6: Final answer
    x = 148,927.94

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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.