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Finding the Fourth Proportional to 71,378.52, 106,870.68 and 53,795.04

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Solution

The fourth proportional to 71,378.52, 106,870.68 and 53,795.04 is: 80,544.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,378.52 : 106,870.68 = 53,795.04 : x
  2. Step 2: Convert to fraction form
    71,378.52/106,870.68 = 53,795.04/x
  3. Step 3: Cross multiply
    71,378.52x = 106,870.68 × 53,795.04
  4. Step 4: Simplify right side
    71,378.52x = 5,749,112,505.43
  5. Step 5: Solve for x
    x = 5,749,112,505.43/71,378.52
  6. Step 6: Final answer
    x = 80,544.01

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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.