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Finding the Fourth Proportional to 173,117.30, 259,169.78 and 156,515.54

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Solution

The fourth proportional to 173,117.30, 259,169.78 and 156,515.54 is: 234,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,117.30 : 259,169.78 = 156,515.54 : x
  2. Step 2: Convert to fraction form
    173,117.30/259,169.78 = 156,515.54/x
  3. Step 3: Cross multiply
    173,117.30x = 259,169.78 × 156,515.54
  4. Step 4: Simplify right side
    173,117.30x = 40,564,097,163.82
  5. Step 5: Solve for x
    x = 40,564,097,163.82/173,117.30
  6. Step 6: Final answer
    x = 234,315.68

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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.