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Finding the Fourth Proportional to 133,172, 183,777.36 and 73,559.84

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Solution

The fourth proportional to 133,172, 183,777.36 and 73,559.84 is: 101,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,172 : 183,777.36 = 73,559.84 : x
  2. Step 2: Convert to fraction form
    133,172/183,777.36 = 73,559.84/x
  3. Step 3: Cross multiply
    133,172x = 183,777.36 × 73,559.84
  4. Step 4: Simplify right side
    133,172x = 13,518,633,197.22
  5. Step 5: Solve for x
    x = 13,518,633,197.22/133,172
  6. Step 6: Final answer
    x = 101,512.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.