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Finding the Fourth Proportional to 111,009.86, 166,470.96 and 44,437.58

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Solution

The fourth proportional to 111,009.86, 166,470.96 and 44,437.58 is: 66,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,009.86 : 166,470.96 = 44,437.58 : x
  2. Step 2: Convert to fraction form
    111,009.86/166,470.96 = 44,437.58/x
  3. Step 3: Cross multiply
    111,009.86x = 166,470.96 × 44,437.58
  4. Step 4: Simplify right side
    111,009.86x = 7,397,566,602.68
  5. Step 5: Solve for x
    x = 7,397,566,602.68/111,009.86
  6. Step 6: Final answer
    x = 66,638.82

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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.