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Finding the Fourth Proportional to 86,208.68, 119,026.54 and 63,550.28

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Solution

The fourth proportional to 86,208.68, 119,026.54 and 63,550.28 is: 87,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208.68 : 119,026.54 = 63,550.28 : x
  2. Step 2: Convert to fraction form
    86,208.68/119,026.54 = 63,550.28/x
  3. Step 3: Cross multiply
    86,208.68x = 119,026.54 × 63,550.28
  4. Step 4: Simplify right side
    86,208.68x = 7,564,169,944.43
  5. Step 5: Solve for x
    x = 7,564,169,944.43/86,208.68
  6. Step 6: Final answer
    x = 87,742.56

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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.