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Finding the Fourth Proportional to 119,813.50, 179,720.25 and 36,707.50

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Solution

The fourth proportional to 119,813.50, 179,720.25 and 36,707.50 is: 55,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,813.50 : 179,720.25 = 36,707.50 : x
  2. Step 2: Convert to fraction form
    119,813.50/179,720.25 = 36,707.50/x
  3. Step 3: Cross multiply
    119,813.50x = 179,720.25 × 36,707.50
  4. Step 4: Simplify right side
    119,813.50x = 6,597,081,076.88
  5. Step 5: Solve for x
    x = 6,597,081,076.88/119,813.50
  6. Step 6: Final answer
    x = 55,061.25

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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.