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Finding the Fourth Proportional to 277,149.25, 382,471.52 and 156,267.15

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Solution

The fourth proportional to 277,149.25, 382,471.52 and 156,267.15 is: 215,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,149.25 : 382,471.52 = 156,267.15 : x
  2. Step 2: Convert to fraction form
    277,149.25/382,471.52 = 156,267.15/x
  3. Step 3: Cross multiply
    277,149.25x = 382,471.52 × 156,267.15
  4. Step 4: Simplify right side
    277,149.25x = 59,767,734,125.67
  5. Step 5: Solve for x
    x = 59,767,734,125.67/277,149.25
  6. Step 6: Final answer
    x = 215,651.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.