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Finding the Fourth Proportional to 178,075.70, 267,163.62 and 71,534.46

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Solution

The fourth proportional to 178,075.70, 267,163.62 and 71,534.46 is: 107,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,075.70 : 267,163.62 = 71,534.46 : x
  2. Step 2: Convert to fraction form
    178,075.70/267,163.62 = 71,534.46/x
  3. Step 3: Cross multiply
    178,075.70x = 267,163.62 × 71,534.46
  4. Step 4: Simplify right side
    178,075.70x = 19,111,405,288.35
  5. Step 5: Solve for x
    x = 19,111,405,288.35/178,075.70
  6. Step 6: Final answer
    x = 107,321.80

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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.