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Finding the Fourth Proportional to 227,626.52, 313,931.80 and 136,965.56

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Solution

The fourth proportional to 227,626.52, 313,931.80 and 136,965.56 is: 188,896.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,626.52 : 313,931.80 = 136,965.56 : x
  2. Step 2: Convert to fraction form
    227,626.52/313,931.80 = 136,965.56/x
  3. Step 3: Cross multiply
    227,626.52x = 313,931.80 × 136,965.56
  4. Step 4: Simplify right side
    227,626.52x = 42,997,844,788.81
  5. Step 5: Solve for x
    x = 42,997,844,788.81/227,626.52
  6. Step 6: Final answer
    x = 188,896.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.