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Finding the Fourth Proportional to 146,737.60, 220,009.20 and 53,231.20

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Solution

The fourth proportional to 146,737.60, 220,009.20 and 53,231.20 is: 79,811.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,737.60 : 220,009.20 = 53,231.20 : x
  2. Step 2: Convert to fraction form
    146,737.60/220,009.20 = 53,231.20/x
  3. Step 3: Cross multiply
    146,737.60x = 220,009.20 × 53,231.20
  4. Step 4: Simplify right side
    146,737.60x = 11,711,353,727.04
  5. Step 5: Solve for x
    x = 11,711,353,727.04/146,737.60
  6. Step 6: Final answer
    x = 79,811.54

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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.