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Finding the Fourth Proportional to 471,361.52, 707,153 and 155,818.40

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Solution

The fourth proportional to 471,361.52, 707,153 and 155,818.40 is: 233,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,361.52 : 707,153 = 155,818.40 : x
  2. Step 2: Convert to fraction form
    471,361.52/707,153 = 155,818.40/x
  3. Step 3: Cross multiply
    471,361.52x = 707,153 × 155,818.40
  4. Step 4: Simplify right side
    471,361.52x = 110,187,449,015.20
  5. Step 5: Solve for x
    x = 110,187,449,015.20/471,361.52
  6. Step 6: Final answer
    x = 233,764.20

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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.