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Finding the Fourth Proportional to 310,134.56, 465,384.64 and 130,251.54

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Solution

The fourth proportional to 310,134.56, 465,384.64 and 130,251.54 is: 195,454.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,134.56 : 465,384.64 = 130,251.54 : x
  2. Step 2: Convert to fraction form
    310,134.56/465,384.64 = 130,251.54/x
  3. Step 3: Cross multiply
    310,134.56x = 465,384.64 × 130,251.54
  4. Step 4: Simplify right side
    310,134.56x = 60,617,067,716.13
  5. Step 5: Solve for x
    x = 60,617,067,716.13/310,134.56
  6. Step 6: Final answer
    x = 195,454.09

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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.