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Finding the Fourth Proportional to 239,728.80, 359,499.71 and 89,887.44

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Solution

The fourth proportional to 239,728.80, 359,499.71 and 89,887.44 is: 134,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,728.80 : 359,499.71 = 89,887.44 : x
  2. Step 2: Convert to fraction form
    239,728.80/359,499.71 = 89,887.44/x
  3. Step 3: Cross multiply
    239,728.80x = 359,499.71 × 89,887.44
  4. Step 4: Simplify right side
    239,728.80x = 32,314,510,185.48
  5. Step 5: Solve for x
    x = 32,314,510,185.48/239,728.80
  6. Step 6: Final answer
    x = 134,796.11

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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.