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Finding the Fourth Proportional to 383,704.17, 575,555.85 and 103,221.42

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Solution

The fourth proportional to 383,704.17, 575,555.85 and 103,221.42 is: 154,832.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,704.17 : 575,555.85 = 103,221.42 : x
  2. Step 2: Convert to fraction form
    383,704.17/575,555.85 = 103,221.42/x
  3. Step 3: Cross multiply
    383,704.17x = 575,555.85 × 103,221.42
  4. Step 4: Simplify right side
    383,704.17x = 59,409,692,126.31
  5. Step 5: Solve for x
    x = 59,409,692,126.31/383,704.17
  6. Step 6: Final answer
    x = 154,832.02

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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.