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Finding the Fourth Proportional to 91,812.96, 137,701.20 and 41,879.52

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Solution

The fourth proportional to 91,812.96, 137,701.20 and 41,879.52 is: 62,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,812.96 : 137,701.20 = 41,879.52 : x
  2. Step 2: Convert to fraction form
    91,812.96/137,701.20 = 41,879.52/x
  3. Step 3: Cross multiply
    91,812.96x = 137,701.20 × 41,879.52
  4. Step 4: Simplify right side
    91,812.96x = 5,766,860,159.42
  5. Step 5: Solve for x
    x = 5,766,860,159.42/91,812.96
  6. Step 6: Final answer
    x = 62,810.96

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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.