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Finding the Fourth Proportional to 133,824.75, 184,678.16 and 74,208.75

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Solution

The fourth proportional to 133,824.75, 184,678.16 and 74,208.75 is: 102,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,824.75 : 184,678.16 = 74,208.75 : x
  2. Step 2: Convert to fraction form
    133,824.75/184,678.16 = 74,208.75/x
  3. Step 3: Cross multiply
    133,824.75x = 184,678.16 × 74,208.75
  4. Step 4: Simplify right side
    133,824.75x = 13,704,735,034.86
  5. Step 5: Solve for x
    x = 13,704,735,034.86/133,824.75
  6. Step 6: Final answer
    x = 102,408.08

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1.5x scale

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.