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Finding the Fourth Proportional to 172,859.50, 259,332.99 and 48,200.50

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Solution

The fourth proportional to 172,859.50, 259,332.99 and 48,200.50 is: 72,312.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,859.50 : 259,332.99 = 48,200.50 : x
  2. Step 2: Convert to fraction form
    172,859.50/259,332.99 = 48,200.50/x
  3. Step 3: Cross multiply
    172,859.50x = 259,332.99 × 48,200.50
  4. Step 4: Simplify right side
    172,859.50x = 12,499,979,784.50
  5. Step 5: Solve for x
    x = 12,499,979,784.50/172,859.50
  6. Step 6: Final answer
    x = 72,312.95

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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.