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Finding the Fourth Proportional to 141,064.50, 194,669.01 and 84,508.68

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Solution

The fourth proportional to 141,064.50, 194,669.01 and 84,508.68 is: 116,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,064.50 : 194,669.01 = 84,508.68 : x
  2. Step 2: Convert to fraction form
    141,064.50/194,669.01 = 84,508.68/x
  3. Step 3: Cross multiply
    141,064.50x = 194,669.01 × 84,508.68
  4. Step 4: Simplify right side
    141,064.50x = 16,451,221,072.01
  5. Step 5: Solve for x
    x = 16,451,221,072.01/141,064.50
  6. Step 6: Final answer
    x = 116,621.98

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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.