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Finding the Fourth Proportional to 293,057.58, 439,587.45 and 71,441.58

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Solution

The fourth proportional to 293,057.58, 439,587.45 and 71,441.58 is: 107,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,057.58 : 439,587.45 = 71,441.58 : x
  2. Step 2: Convert to fraction form
    293,057.58/439,587.45 = 71,441.58/x
  3. Step 3: Cross multiply
    293,057.58x = 439,587.45 × 71,441.58
  4. Step 4: Simplify right side
    293,057.58x = 31,404,821,976.17
  5. Step 5: Solve for x
    x = 31,404,821,976.17/293,057.58
  6. Step 6: Final answer
    x = 107,162.63

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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.