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Finding the Fourth Proportional to 331,649.94, 497,352.51 and 118,360.79

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Solution

The fourth proportional to 331,649.94, 497,352.51 and 118,360.79 is: 177,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,649.94 : 497,352.51 = 118,360.79 : x
  2. Step 2: Convert to fraction form
    331,649.94/497,352.51 = 118,360.79/x
  3. Step 3: Cross multiply
    331,649.94x = 497,352.51 × 118,360.79
  4. Step 4: Simplify right side
    331,649.94x = 58,867,033,505.32
  5. Step 5: Solve for x
    x = 58,867,033,505.32/331,649.94
  6. Step 6: Final answer
    x = 177,497.49

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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.