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Finding the Fourth Proportional to 143,385.40, 214,883.70 and 95,865.40

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Solution

The fourth proportional to 143,385.40, 214,883.70 and 95,865.40 is: 143,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,385.40 : 214,883.70 = 95,865.40 : x
  2. Step 2: Convert to fraction form
    143,385.40/214,883.70 = 95,865.40/x
  3. Step 3: Cross multiply
    143,385.40x = 214,883.70 × 95,865.40
  4. Step 4: Simplify right side
    143,385.40x = 20,599,911,853.98
  5. Step 5: Solve for x
    x = 20,599,911,853.98/143,385.40
  6. Step 6: Final answer
    x = 143,668.13

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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.