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Finding the Fourth Proportional to 472,246.22, 708,181.40 and 172,658.54

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Solution

The fourth proportional to 472,246.22, 708,181.40 and 172,658.54 is: 258,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,246.22 : 708,181.40 = 172,658.54 : x
  2. Step 2: Convert to fraction form
    472,246.22/708,181.40 = 172,658.54/x
  3. Step 3: Cross multiply
    472,246.22x = 708,181.40 × 172,658.54
  4. Step 4: Simplify right side
    472,246.22x = 122,273,566,579.16
  5. Step 5: Solve for x
    x = 122,273,566,579.16/472,246.22
  6. Step 6: Final answer
    x = 258,919.10

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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.