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Finding the Fourth Proportional to 414,573.52, 621,879.72 and 134,112.64

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Solution

The fourth proportional to 414,573.52, 621,879.72 and 134,112.64 is: 201,175.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,573.52 : 621,879.72 = 134,112.64 : x
  2. Step 2: Convert to fraction form
    414,573.52/621,879.72 = 134,112.64/x
  3. Step 3: Cross multiply
    414,573.52x = 621,879.72 × 134,112.64
  4. Step 4: Simplify right side
    414,573.52x = 83,401,931,011.66
  5. Step 5: Solve for x
    x = 83,401,931,011.66/414,573.52
  6. Step 6: Final answer
    x = 201,175.25

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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.