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Finding the Fourth Proportional to 193,533.80, 289,911.90 and 134,436.20

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Solution

The fourth proportional to 193,533.80, 289,911.90 and 134,436.20 is: 201,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,533.80 : 289,911.90 = 134,436.20 : x
  2. Step 2: Convert to fraction form
    193,533.80/289,911.90 = 134,436.20/x
  3. Step 3: Cross multiply
    193,533.80x = 289,911.90 × 134,436.20
  4. Step 4: Simplify right side
    193,533.80x = 38,974,654,170.78
  5. Step 5: Solve for x
    x = 38,974,654,170.78/193,533.80
  6. Step 6: Final answer
    x = 201,384.22

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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.