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Finding the Fourth Proportional to 86,645.46, 119,581.08 and 52,659.48

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Solution

The fourth proportional to 86,645.46, 119,581.08 and 52,659.48 is: 72,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,645.46 : 119,581.08 = 52,659.48 : x
  2. Step 2: Convert to fraction form
    86,645.46/119,581.08 = 52,659.48/x
  3. Step 3: Cross multiply
    86,645.46x = 119,581.08 × 52,659.48
  4. Step 4: Simplify right side
    86,645.46x = 6,297,077,490.64
  5. Step 5: Solve for x
    x = 6,297,077,490.64/86,645.46
  6. Step 6: Final answer
    x = 72,676.37

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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.