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Finding the Fourth Proportional to 76,343.49, 114,440.77 and 36,351.72

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Solution

The fourth proportional to 76,343.49, 114,440.77 and 36,351.72 is: 54,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,343.49 : 114,440.77 = 36,351.72 : x
  2. Step 2: Convert to fraction form
    76,343.49/114,440.77 = 36,351.72/x
  3. Step 3: Cross multiply
    76,343.49x = 114,440.77 × 36,351.72
  4. Step 4: Simplify right side
    76,343.49x = 4,160,118,827.62
  5. Step 5: Solve for x
    x = 4,160,118,827.62/76,343.49
  6. Step 6: Final answer
    x = 54,492.12

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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.