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Finding the Fourth Proportional to 239,991.50, 360,045.57 and 73,779.50

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Solution

The fourth proportional to 239,991.50, 360,045.57 and 73,779.50 is: 110,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,991.50 : 360,045.57 = 73,779.50 : x
  2. Step 2: Convert to fraction form
    239,991.50/360,045.57 = 73,779.50/x
  3. Step 3: Cross multiply
    239,991.50x = 360,045.57 × 73,779.50
  4. Step 4: Simplify right side
    239,991.50x = 26,563,982,131.82
  5. Step 5: Solve for x
    x = 26,563,982,131.82/239,991.50
  6. Step 6: Final answer
    x = 110,687.18

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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.