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Finding the Fourth Proportional to 253,832.90, 380,348.79 and 93,688.41

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Solution

The fourth proportional to 253,832.90, 380,348.79 and 93,688.41 is: 140,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,832.90 : 380,348.79 = 93,688.41 : x
  2. Step 2: Convert to fraction form
    253,832.90/380,348.79 = 93,688.41/x
  3. Step 3: Cross multiply
    253,832.90x = 380,348.79 × 93,688.41
  4. Step 4: Simplify right side
    253,832.90x = 35,634,273,380.52
  5. Step 5: Solve for x
    x = 35,634,273,380.52/253,832.90
  6. Step 6: Final answer
    x = 140,384.77

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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.