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Finding the Fourth Proportional to 85,950.89, 118,606.29 and 47,707.43

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Solution

The fourth proportional to 85,950.89, 118,606.29 and 47,707.43 is: 65,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,950.89 : 118,606.29 = 47,707.43 : x
  2. Step 2: Convert to fraction form
    85,950.89/118,606.29 = 47,707.43/x
  3. Step 3: Cross multiply
    85,950.89x = 118,606.29 × 47,707.43
  4. Step 4: Simplify right side
    85,950.89x = 5,658,401,039.20
  5. Step 5: Solve for x
    x = 5,658,401,039.20/85,950.89
  6. Step 6: Final answer
    x = 65,832.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.