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Finding the Fourth Proportional to 133,173, 183,778.74 and 73,560.84

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Solution

The fourth proportional to 133,173, 183,778.74 and 73,560.84 is: 101,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,173 : 183,778.74 = 73,560.84 : x
  2. Step 2: Convert to fraction form
    133,173/183,778.74 = 73,560.84/x
  3. Step 3: Cross multiply
    133,173x = 183,778.74 × 73,560.84
  4. Step 4: Simplify right side
    133,173x = 13,518,918,488.54
  5. Step 5: Solve for x
    x = 13,518,918,488.54/133,173
  6. Step 6: Final answer
    x = 101,513.96

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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.