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Finding the Fourth Proportional to 180,321.99, 248,844.31 and 98,650.90

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Solution

The fourth proportional to 180,321.99, 248,844.31 and 98,650.90 is: 136,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,321.99 : 248,844.31 = 98,650.90 : x
  2. Step 2: Convert to fraction form
    180,321.99/248,844.31 = 98,650.90/x
  3. Step 3: Cross multiply
    180,321.99x = 248,844.31 × 98,650.90
  4. Step 4: Simplify right side
    180,321.99x = 24,548,715,141.38
  5. Step 5: Solve for x
    x = 24,548,715,141.38/180,321.99
  6. Step 6: Final answer
    x = 136,138.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.