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Finding the Fourth Proportional to 250,719.31, 376,079.78 and 63,730.81

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Solution

The fourth proportional to 250,719.31, 376,079.78 and 63,730.81 is: 95,596.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,719.31 : 376,079.78 = 63,730.81 : x
  2. Step 2: Convert to fraction form
    250,719.31/376,079.78 = 63,730.81/x
  3. Step 3: Cross multiply
    250,719.31x = 376,079.78 × 63,730.81
  4. Step 4: Simplify right side
    250,719.31x = 23,967,869,004.02
  5. Step 5: Solve for x
    x = 23,967,869,004.02/250,719.31
  6. Step 6: Final answer
    x = 95,596.42

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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.