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Finding the Fourth Proportional to 193,124.40, 289,600.20 and 87,889.20

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Solution

The fourth proportional to 193,124.40, 289,600.20 and 87,889.20 is: 131,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,124.40 : 289,600.20 = 87,889.20 : x
  2. Step 2: Convert to fraction form
    193,124.40/289,600.20 = 87,889.20/x
  3. Step 3: Cross multiply
    193,124.40x = 289,600.20 × 87,889.20
  4. Step 4: Simplify right side
    193,124.40x = 25,452,729,897.84
  5. Step 5: Solve for x
    x = 25,452,729,897.84/193,124.40
  6. Step 6: Final answer
    x = 131,794.48

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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.