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Finding the Fourth Proportional to 162,917.40, 244,376.10 and 143,234.40

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Solution

The fourth proportional to 162,917.40, 244,376.10 and 143,234.40 is: 214,851.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,917.40 : 244,376.10 = 143,234.40 : x
  2. Step 2: Convert to fraction form
    162,917.40/244,376.10 = 143,234.40/x
  3. Step 3: Cross multiply
    162,917.40x = 244,376.10 × 143,234.40
  4. Step 4: Simplify right side
    162,917.40x = 35,003,064,057.84
  5. Step 5: Solve for x
    x = 35,003,064,057.84/162,917.40
  6. Step 6: Final answer
    x = 214,851.60

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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.