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Finding the Fourth Proportional to 101,816.13, 152,728.31 and 48,480.67

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Solution

The fourth proportional to 101,816.13, 152,728.31 and 48,480.67 is: 72,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,816.13 : 152,728.31 = 48,480.67 : x
  2. Step 2: Convert to fraction form
    101,816.13/152,728.31 = 48,480.67/x
  3. Step 3: Cross multiply
    101,816.13x = 152,728.31 × 48,480.67
  4. Step 4: Simplify right side
    101,816.13x = 7,404,370,796.77
  5. Step 5: Solve for x
    x = 7,404,370,796.77/101,816.13
  6. Step 6: Final answer
    x = 72,722.96

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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.