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Finding the Fourth Proportional to 240,731.37, 360,980.42 and 120,736.76

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Solution

The fourth proportional to 240,731.37, 360,980.42 and 120,736.76 is: 181,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,731.37 : 360,980.42 = 120,736.76 : x
  2. Step 2: Convert to fraction form
    240,731.37/360,980.42 = 120,736.76/x
  3. Step 3: Cross multiply
    240,731.37x = 360,980.42 × 120,736.76
  4. Step 4: Simplify right side
    240,731.37x = 43,583,603,925.65
  5. Step 5: Solve for x
    x = 43,583,603,925.65/240,731.37
  6. Step 6: Final answer
    x = 181,046.63

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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.