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Finding the Fourth Proportional to 90,950.53, 136,392.53 and 34,762.86

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Solution

The fourth proportional to 90,950.53, 136,392.53 and 34,762.86 is: 52,131.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,950.53 : 136,392.53 = 34,762.86 : x
  2. Step 2: Convert to fraction form
    90,950.53/136,392.53 = 34,762.86/x
  3. Step 3: Cross multiply
    90,950.53x = 136,392.53 × 34,762.86
  4. Step 4: Simplify right side
    90,950.53x = 4,741,393,743.47
  5. Step 5: Solve for x
    x = 4,741,393,743.47/90,950.53
  6. Step 6: Final answer
    x = 52,131.57

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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.