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Finding the Fourth Proportional to 86,473.48, 129,749.64 and 44,383.12

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Solution

The fourth proportional to 86,473.48, 129,749.64 and 44,383.12 is: 66,594.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,473.48 : 129,749.64 = 44,383.12 : x
  2. Step 2: Convert to fraction form
    86,473.48/129,749.64 = 44,383.12/x
  3. Step 3: Cross multiply
    86,473.48x = 129,749.64 × 44,383.12
  4. Step 4: Simplify right side
    86,473.48x = 5,758,693,842.08
  5. Step 5: Solve for x
    x = 5,758,693,842.08/86,473.48
  6. Step 6: Final answer
    x = 66,594.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.