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Finding the Fourth Proportional to 95,943.40, 143,720.70 and 54,341.80

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Solution

The fourth proportional to 95,943.40, 143,720.70 and 54,341.80 is: 81,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,943.40 : 143,720.70 = 54,341.80 : x
  2. Step 2: Convert to fraction form
    95,943.40/143,720.70 = 54,341.80/x
  3. Step 3: Cross multiply
    95,943.40x = 143,720.70 × 54,341.80
  4. Step 4: Simplify right side
    95,943.40x = 7,810,041,535.26
  5. Step 5: Solve for x
    x = 7,810,041,535.26/95,943.40
  6. Step 6: Final answer
    x = 81,402.59

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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.