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Finding the Fourth Proportional to 79,672.65, 119,449.25 and 48,075.26

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Solution

The fourth proportional to 79,672.65, 119,449.25 and 48,075.26 is: 72,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,672.65 : 119,449.25 = 48,075.26 : x
  2. Step 2: Convert to fraction form
    79,672.65/119,449.25 = 48,075.26/x
  3. Step 3: Cross multiply
    79,672.65x = 119,449.25 × 48,075.26
  4. Step 4: Simplify right side
    79,672.65x = 5,742,552,912.93
  5. Step 5: Solve for x
    x = 5,742,552,912.93/79,672.65
  6. Step 6: Final answer
    x = 72,076.84

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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.