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Finding the Fourth Proportional to 73,795.55, 110,681.45 and 21,193.07

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Solution

The fourth proportional to 73,795.55, 110,681.45 and 21,193.07 is: 31,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,795.55 : 110,681.45 = 21,193.07 : x
  2. Step 2: Convert to fraction form
    73,795.55/110,681.45 = 21,193.07/x
  3. Step 3: Cross multiply
    73,795.55x = 110,681.45 × 21,193.07
  4. Step 4: Simplify right side
    73,795.55x = 2,345,679,611.59
  5. Step 5: Solve for x
    x = 2,345,679,611.59/73,795.55
  6. Step 6: Final answer
    x = 31,786.19

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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.