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Finding the Fourth Proportional to 253,096.50, 349,280.46 and 139,926.54

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Solution

The fourth proportional to 253,096.50, 349,280.46 and 139,926.54 is: 193,102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,096.50 : 349,280.46 = 139,926.54 : x
  2. Step 2: Convert to fraction form
    253,096.50/349,280.46 = 139,926.54/x
  3. Step 3: Cross multiply
    253,096.50x = 349,280.46 × 139,926.54
  4. Step 4: Simplify right side
    253,096.50x = 48,873,606,257.41
  5. Step 5: Solve for x
    x = 48,873,606,257.41/253,096.50
  6. Step 6: Final answer
    x = 193,102.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.