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Finding the Fourth Proportional to 162,915.40, 244,373.10 and 143,232.40

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Solution

The fourth proportional to 162,915.40, 244,373.10 and 143,232.40 is: 214,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,915.40 : 244,373.10 = 143,232.40 : x
  2. Step 2: Convert to fraction form
    162,915.40/244,373.10 = 143,232.40/x
  3. Step 3: Cross multiply
    162,915.40x = 244,373.10 × 143,232.40
  4. Step 4: Simplify right side
    162,915.40x = 35,002,145,608.44
  5. Step 5: Solve for x
    x = 35,002,145,608.44/162,915.40
  6. Step 6: Final answer
    x = 214,848.60

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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.