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Finding the Fourth Proportional to 120,793.98, 181,128.98 and 63,898.59

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Solution

The fourth proportional to 120,793.98, 181,128.98 and 63,898.59 is: 95,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,793.98 : 181,128.98 = 63,898.59 : x
  2. Step 2: Convert to fraction form
    120,793.98/181,128.98 = 63,898.59/x
  3. Step 3: Cross multiply
    120,793.98x = 181,128.98 × 63,898.59
  4. Step 4: Simplify right side
    120,793.98x = 11,573,886,430.14
  5. Step 5: Solve for x
    x = 11,573,886,430.14/120,793.98
  6. Step 6: Final answer
    x = 95,815.09

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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.