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Finding the Fourth Proportional to 357,995.70, 537,006.51 and 121,361.22

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Solution

The fourth proportional to 357,995.70, 537,006.51 and 121,361.22 is: 182,046.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,995.70 : 537,006.51 = 121,361.22 : x
  2. Step 2: Convert to fraction form
    357,995.70/537,006.51 = 121,361.22/x
  3. Step 3: Cross multiply
    357,995.70x = 537,006.51 × 121,361.22
  4. Step 4: Simplify right side
    357,995.70x = 65,171,765,201.54
  5. Step 5: Solve for x
    x = 65,171,765,201.54/357,995.70
  6. Step 6: Final answer
    x = 182,046.22

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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.