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Finding the Fourth Proportional to 342,997.44, 514,671.60 and 163,285.92

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Solution

The fourth proportional to 342,997.44, 514,671.60 and 163,285.92 is: 245,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,997.44 : 514,671.60 = 163,285.92 : x
  2. Step 2: Convert to fraction form
    342,997.44/514,671.60 = 163,285.92/x
  3. Step 3: Cross multiply
    342,997.44x = 514,671.60 × 163,285.92
  4. Step 4: Simplify right side
    342,997.44x = 84,038,625,703.87
  5. Step 5: Solve for x
    x = 84,038,625,703.87/342,997.44
  6. Step 6: Final answer
    x = 245,012.40

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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.