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Finding the Fourth Proportional to 147,808.92, 203,899.56 and 94,000.50

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Solution

The fourth proportional to 147,808.92, 203,899.56 and 94,000.50 is: 129,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,808.92 : 203,899.56 = 94,000.50 : x
  2. Step 2: Convert to fraction form
    147,808.92/203,899.56 = 94,000.50/x
  3. Step 3: Cross multiply
    147,808.92x = 203,899.56 × 94,000.50
  4. Step 4: Simplify right side
    147,808.92x = 19,166,660,589.78
  5. Step 5: Solve for x
    x = 19,166,660,589.78/147,808.92
  6. Step 6: Final answer
    x = 129,671.88

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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.