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Finding the Fourth Proportional to 95,901.40, 143,916.90 and 53,781.40

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Solution

The fourth proportional to 95,901.40, 143,916.90 and 53,781.40 is: 80,708.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,901.40 : 143,916.90 = 53,781.40 : x
  2. Step 2: Convert to fraction form
    95,901.40/143,916.90 = 53,781.40/x
  3. Step 3: Cross multiply
    95,901.40x = 143,916.90 × 53,781.40
  4. Step 4: Simplify right side
    95,901.40x = 7,740,052,365.66
  5. Step 5: Solve for x
    x = 7,740,052,365.66/95,901.40
  6. Step 6: Final answer
    x = 80,708.44

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1.5x scale

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.