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Finding the Fourth Proportional to 357,761.85, 536,661.15 and 91,524.66

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Solution

The fourth proportional to 357,761.85, 536,661.15 and 91,524.66 is: 137,291.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,761.85 : 536,661.15 = 91,524.66 : x
  2. Step 2: Convert to fraction form
    357,761.85/536,661.15 = 91,524.66/x
  3. Step 3: Cross multiply
    357,761.85x = 536,661.15 × 91,524.66
  4. Step 4: Simplify right side
    357,761.85x = 49,117,729,288.96
  5. Step 5: Solve for x
    x = 49,117,729,288.96/357,761.85
  6. Step 6: Final answer
    x = 137,291.69

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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.