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Finding the Fourth Proportional to 85,610.66, 118,132.36 and 49,323.98

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Solution

The fourth proportional to 85,610.66, 118,132.36 and 49,323.98 is: 68,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,610.66 : 118,132.36 = 49,323.98 : x
  2. Step 2: Convert to fraction form
    85,610.66/118,132.36 = 49,323.98/x
  3. Step 3: Cross multiply
    85,610.66x = 118,132.36 × 49,323.98
  4. Step 4: Simplify right side
    85,610.66x = 5,826,757,448.02
  5. Step 5: Solve for x
    x = 5,826,757,448.02/85,610.66
  6. Step 6: Final answer
    x = 68,061.12

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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.