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Finding the Fourth Proportional to 133,375.51, 184,051.38 and 72,934.41

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Solution

The fourth proportional to 133,375.51, 184,051.38 and 72,934.41 is: 100,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,375.51 : 184,051.38 = 72,934.41 : x
  2. Step 2: Convert to fraction form
    133,375.51/184,051.38 = 72,934.41/x
  3. Step 3: Cross multiply
    133,375.51x = 184,051.38 × 72,934.41
  4. Step 4: Simplify right side
    133,375.51x = 13,423,678,809.99
  5. Step 5: Solve for x
    x = 13,423,678,809.99/133,375.51
  6. Step 6: Final answer
    x = 100,645.75

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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.