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Finding the Fourth Proportional to 69,903.81, 104,858.45 and 30,461.27

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Solution

The fourth proportional to 69,903.81, 104,858.45 and 30,461.27 is: 45,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903.81 : 104,858.45 = 30,461.27 : x
  2. Step 2: Convert to fraction form
    69,903.81/104,858.45 = 30,461.27/x
  3. Step 3: Cross multiply
    69,903.81x = 104,858.45 × 30,461.27
  4. Step 4: Simplify right side
    69,903.81x = 3,194,120,994.86
  5. Step 5: Solve for x
    x = 3,194,120,994.86/69,903.81
  6. Step 6: Final answer
    x = 45,693.09

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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.