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Finding the Fourth Proportional to 460,671.58, 691,105.78 and 161,161.93

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Solution

The fourth proportional to 460,671.58, 691,105.78 and 161,161.93 is: 241,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,671.58 : 691,105.78 = 161,161.93 : x
  2. Step 2: Convert to fraction form
    460,671.58/691,105.78 = 161,161.93/x
  3. Step 3: Cross multiply
    460,671.58x = 691,105.78 × 161,161.93
  4. Step 4: Simplify right side
    460,671.58x = 111,379,941,338.96
  5. Step 5: Solve for x
    x = 111,379,941,338.96/460,671.58
  6. Step 6: Final answer
    x = 241,777.32

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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.