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Finding the Fourth Proportional to 144,779.91, 217,169.13 and 36,709.30

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Solution

The fourth proportional to 144,779.91, 217,169.13 and 36,709.30 is: 55,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,779.91 : 217,169.13 = 36,709.30 : x
  2. Step 2: Convert to fraction form
    144,779.91/217,169.13 = 36,709.30/x
  3. Step 3: Cross multiply
    144,779.91x = 217,169.13 × 36,709.30
  4. Step 4: Simplify right side
    144,779.91x = 7,972,127,153.03
  5. Step 5: Solve for x
    x = 7,972,127,153.03/144,779.91
  6. Step 6: Final answer
    x = 55,063.77

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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.