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Finding the Fourth Proportional to 95,720.81, 143,362.51 and 45,835.94

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Solution

The fourth proportional to 95,720.81, 143,362.51 and 45,835.94 is: 68,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,720.81 : 143,362.51 = 45,835.94 : x
  2. Step 2: Convert to fraction form
    95,720.81/143,362.51 = 45,835.94/x
  3. Step 3: Cross multiply
    95,720.81x = 143,362.51 × 45,835.94
  4. Step 4: Simplify right side
    95,720.81x = 6,571,155,650.43
  5. Step 5: Solve for x
    x = 6,571,155,650.43/95,720.81
  6. Step 6: Final answer
    x = 68,649.19

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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.