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Finding the Fourth Proportional to 183,437.72, 275,128.20 and 75,378.04

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Solution

The fourth proportional to 183,437.72, 275,128.20 and 75,378.04 is: 113,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,437.72 : 275,128.20 = 75,378.04 : x
  2. Step 2: Convert to fraction form
    183,437.72/275,128.20 = 75,378.04/x
  3. Step 3: Cross multiply
    183,437.72x = 275,128.20 × 75,378.04
  4. Step 4: Simplify right side
    183,437.72x = 20,738,624,464.73
  5. Step 5: Solve for x
    x = 20,738,624,464.73/183,437.72
  6. Step 6: Final answer
    x = 113,055.40

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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.