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Finding the Fourth Proportional to 292,699.73, 439,016.06 and 76,579.33

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Solution

The fourth proportional to 292,699.73, 439,016.06 and 76,579.33 is: 114,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,699.73 : 439,016.06 = 76,579.33 : x
  2. Step 2: Convert to fraction form
    292,699.73/439,016.06 = 76,579.33/x
  3. Step 3: Cross multiply
    292,699.73x = 439,016.06 × 76,579.33
  4. Step 4: Simplify right side
    292,699.73x = 33,619,555,734.04
  5. Step 5: Solve for x
    x = 33,619,555,734.04/292,699.73
  6. Step 6: Final answer
    x = 114,860.22

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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.