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Finding the Fourth Proportional to 69,991.16, 104,803.73 and 38,335.37

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Solution

The fourth proportional to 69,991.16, 104,803.73 and 38,335.37 is: 57,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,991.16 : 104,803.73 = 38,335.37 : x
  2. Step 2: Convert to fraction form
    69,991.16/104,803.73 = 38,335.37/x
  3. Step 3: Cross multiply
    69,991.16x = 104,803.73 × 38,335.37
  4. Step 4: Simplify right side
    69,991.16x = 4,017,689,051.23
  5. Step 5: Solve for x
    x = 4,017,689,051.23/69,991.16
  6. Step 6: Final answer
    x = 57,402.81

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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.