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Finding the Fourth Proportional to 95,498.20, 143,400.30 and 75,939.40

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Solution

The fourth proportional to 95,498.20, 143,400.30 and 75,939.40 is: 114,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,498.20 : 143,400.30 = 75,939.40 : x
  2. Step 2: Convert to fraction form
    95,498.20/143,400.30 = 75,939.40/x
  3. Step 3: Cross multiply
    95,498.20x = 143,400.30 × 75,939.40
  4. Step 4: Simplify right side
    95,498.20x = 10,889,732,741.82
  5. Step 5: Solve for x
    x = 10,889,732,741.82/95,498.20
  6. Step 6: Final answer
    x = 114,030.76

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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.