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Finding the Fourth Proportional to 172,827.20, 259,240.95 and 48,168.20

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Solution

The fourth proportional to 172,827.20, 259,240.95 and 48,168.20 is: 72,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,827.20 : 259,240.95 = 48,168.20 : x
  2. Step 2: Convert to fraction form
    172,827.20/259,240.95 = 48,168.20/x
  3. Step 3: Cross multiply
    172,827.20x = 259,240.95 × 48,168.20
  4. Step 4: Simplify right side
    172,827.20x = 12,487,168,631.59
  5. Step 5: Solve for x
    x = 12,487,168,631.59/172,827.20
  6. Step 6: Final answer
    x = 72,252.34

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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.