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Finding the Fourth Proportional to 548,705.78, 823,137.52 and 169,656.08

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Solution

The fourth proportional to 548,705.78, 823,137.52 and 169,656.08 is: 254,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,705.78 : 823,137.52 = 169,656.08 : x
  2. Step 2: Convert to fraction form
    548,705.78/823,137.52 = 169,656.08/x
  3. Step 3: Cross multiply
    548,705.78x = 823,137.52 × 169,656.08
  4. Step 4: Simplify right side
    548,705.78x = 139,650,284,944.12
  5. Step 5: Solve for x
    x = 139,650,284,944.12/548,705.78
  6. Step 6: Final answer
    x = 254,508.50

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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.