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Finding the Fourth Proportional to 203,197.20, 304,212.60 and 124,465.20

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Solution

The fourth proportional to 203,197.20, 304,212.60 and 124,465.20 is: 186,340.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,197.20 : 304,212.60 = 124,465.20 : x
  2. Step 2: Convert to fraction form
    203,197.20/304,212.60 = 124,465.20/x
  3. Step 3: Cross multiply
    203,197.20x = 304,212.60 × 124,465.20
  4. Step 4: Simplify right side
    203,197.20x = 37,863,882,101.52
  5. Step 5: Solve for x
    x = 37,863,882,101.52/203,197.20
  6. Step 6: Final answer
    x = 186,340.57

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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.