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Finding the Fourth Proportional to 177,163.89, 265,658.22 and 77,280.90

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Solution

The fourth proportional to 177,163.89, 265,658.22 and 77,280.90 is: 115,883.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,163.89 : 265,658.22 = 77,280.90 : x
  2. Step 2: Convert to fraction form
    177,163.89/265,658.22 = 77,280.90/x
  3. Step 3: Cross multiply
    177,163.89x = 265,658.22 × 77,280.90
  4. Step 4: Simplify right side
    177,163.89x = 20,530,306,334.00
  5. Step 5: Solve for x
    x = 20,530,306,334.00/177,163.89
  6. Step 6: Final answer
    x = 115,883.13

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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.