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Finding the Fourth Proportional to 414,572.52, 621,878.22 and 134,111.64

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Solution

The fourth proportional to 414,572.52, 621,878.22 and 134,111.64 is: 201,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,572.52 : 621,878.22 = 134,111.64 : x
  2. Step 2: Convert to fraction form
    414,572.52/621,878.22 = 134,111.64/x
  3. Step 3: Cross multiply
    414,572.52x = 621,878.22 × 134,111.64
  4. Step 4: Simplify right side
    414,572.52x = 83,401,107,964.48
  5. Step 5: Solve for x
    x = 83,401,107,964.48/414,572.52
  6. Step 6: Final answer
    x = 201,173.75

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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.