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Finding the Fourth Proportional to 514,134.40, 770,915.52 and 159,049.60

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Solution

The fourth proportional to 514,134.40, 770,915.52 and 159,049.60 is: 238,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,134.40 : 770,915.52 = 159,049.60 : x
  2. Step 2: Convert to fraction form
    514,134.40/770,915.52 = 159,049.60/x
  3. Step 3: Cross multiply
    514,134.40x = 770,915.52 × 159,049.60
  4. Step 4: Simplify right side
    514,134.40x = 122,613,805,089.79
  5. Step 5: Solve for x
    x = 122,613,805,089.79/514,134.40
  6. Step 6: Final answer
    x = 238,485.90

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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.