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Finding the Fourth Proportional to 273,358.40, 410,114.40 and 133,121.60

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Solution

The fourth proportional to 273,358.40, 410,114.40 and 133,121.60 is: 199,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,358.40 : 410,114.40 = 133,121.60 : x
  2. Step 2: Convert to fraction form
    273,358.40/410,114.40 = 133,121.60/x
  3. Step 3: Cross multiply
    273,358.40x = 410,114.40 × 133,121.60
  4. Step 4: Simplify right side
    273,358.40x = 54,595,085,111.04
  5. Step 5: Solve for x
    x = 54,595,085,111.04/273,358.40
  6. Step 6: Final answer
    x = 199,719.80

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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.