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Finding the Fourth Proportional to 133,842.11, 184,698.70 and 72,584.91

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Solution

The fourth proportional to 133,842.11, 184,698.70 and 72,584.91 is: 100,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,842.11 : 184,698.70 = 72,584.91 : x
  2. Step 2: Convert to fraction form
    133,842.11/184,698.70 = 72,584.91/x
  3. Step 3: Cross multiply
    133,842.11x = 184,698.70 × 72,584.91
  4. Step 4: Simplify right side
    133,842.11x = 13,406,338,335.15
  5. Step 5: Solve for x
    x = 13,406,338,335.15/133,842.11
  6. Step 6: Final answer
    x = 100,165.33

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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.