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Finding the Fourth Proportional to 76,104.90, 114,015.06 and 63,704.61

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Solution

The fourth proportional to 76,104.90, 114,015.06 and 63,704.61 is: 95,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,104.90 : 114,015.06 = 63,704.61 : x
  2. Step 2: Convert to fraction form
    76,104.90/114,015.06 = 63,704.61/x
  3. Step 3: Cross multiply
    76,104.90x = 114,015.06 × 63,704.61
  4. Step 4: Simplify right side
    76,104.90x = 7,263,284,931.43
  5. Step 5: Solve for x
    x = 7,263,284,931.43/76,104.90
  6. Step 6: Final answer
    x = 95,437.81

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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.