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Finding the Fourth Proportional to 294,379.52, 441,657.93 and 91,967.45

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Solution

The fourth proportional to 294,379.52, 441,657.93 and 91,967.45 is: 137,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,379.52 : 441,657.93 = 91,967.45 : x
  2. Step 2: Convert to fraction form
    294,379.52/441,657.93 = 91,967.45/x
  3. Step 3: Cross multiply
    294,379.52x = 441,657.93 × 91,967.45
  4. Step 4: Simplify right side
    294,379.52x = 40,618,153,134.54
  5. Step 5: Solve for x
    x = 40,618,153,134.54/294,379.52
  6. Step 6: Final answer
    x = 137,978.87

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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.