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Finding the Fourth Proportional to 133,605.67, 184,287.12 and 85,919.35

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Solution

The fourth proportional to 133,605.67, 184,287.12 and 85,919.35 is: 118,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,605.67 : 184,287.12 = 85,919.35 : x
  2. Step 2: Convert to fraction form
    133,605.67/184,287.12 = 85,919.35/x
  3. Step 3: Cross multiply
    133,605.67x = 184,287.12 × 85,919.35
  4. Step 4: Simplify right side
    133,605.67x = 15,833,829,563.77
  5. Step 5: Solve for x
    x = 15,833,829,563.77/133,605.67
  6. Step 6: Final answer
    x = 118,511.66

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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.