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Finding the Fourth Proportional to 101,698.20, 152,571.60 and 49,064.40

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Solution

The fourth proportional to 101,698.20, 152,571.60 and 49,064.40 is: 73,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,698.20 : 152,571.60 = 49,064.40 : x
  2. Step 2: Convert to fraction form
    101,698.20/152,571.60 = 49,064.40/x
  3. Step 3: Cross multiply
    101,698.20x = 152,571.60 × 49,064.40
  4. Step 4: Simplify right side
    101,698.20x = 7,485,834,011.04
  5. Step 5: Solve for x
    x = 7,485,834,011.04/101,698.20
  6. Step 6: Final answer
    x = 73,608.32

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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.