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Finding the Fourth Proportional to 383,047.25, 574,570.88 and 120,391.25

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Solution

The fourth proportional to 383,047.25, 574,570.88 and 120,391.25 is: 180,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,047.25 : 574,570.88 = 120,391.25 : x
  2. Step 2: Convert to fraction form
    383,047.25/574,570.88 = 120,391.25/x
  3. Step 3: Cross multiply
    383,047.25x = 574,570.88 × 120,391.25
  4. Step 4: Simplify right side
    383,047.25x = 69,173,305,854.84
  5. Step 5: Solve for x
    x = 69,173,305,854.84/383,047.25
  6. Step 6: Final answer
    x = 180,586.88

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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.