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Finding the Fourth Proportional to 172,856.50, 259,328.49 and 48,197.50

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Solution

The fourth proportional to 172,856.50, 259,328.49 and 48,197.50 is: 72,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,856.50 : 259,328.49 = 48,197.50 : x
  2. Step 2: Convert to fraction form
    172,856.50/259,328.49 = 48,197.50/x
  3. Step 3: Cross multiply
    172,856.50x = 259,328.49 × 48,197.50
  4. Step 4: Simplify right side
    172,856.50x = 12,498,984,896.78
  5. Step 5: Solve for x
    x = 12,498,984,896.78/172,856.50
  6. Step 6: Final answer
    x = 72,308.45

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1.5x scale

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.