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Finding the Fourth Proportional to 70,564.37, 105,855.93 and 37,285.79

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Solution

The fourth proportional to 70,564.37, 105,855.93 and 37,285.79 is: 55,933.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,564.37 : 105,855.93 = 37,285.79 : x
  2. Step 2: Convert to fraction form
    70,564.37/105,855.93 = 37,285.79/x
  3. Step 3: Cross multiply
    70,564.37x = 105,855.93 × 37,285.79
  4. Step 4: Simplify right side
    70,564.37x = 3,946,921,446.96
  5. Step 5: Solve for x
    x = 3,946,921,446.96/70,564.37
  6. Step 6: Final answer
    x = 55,933.64

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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.