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Finding the Fourth Proportional to 251,072.64, 376,621.92 and 64,085.76

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Solution

The fourth proportional to 251,072.64, 376,621.92 and 64,085.76 is: 96,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,072.64 : 376,621.92 = 64,085.76 : x
  2. Step 2: Convert to fraction form
    251,072.64/376,621.92 = 64,085.76/x
  3. Step 3: Cross multiply
    251,072.64x = 376,621.92 × 64,085.76
  4. Step 4: Simplify right side
    251,072.64x = 24,136,101,975.86
  5. Step 5: Solve for x
    x = 24,136,101,975.86/251,072.64
  6. Step 6: Final answer
    x = 96,131.95

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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.