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Finding the Fourth Proportional to 127,639.86, 191,547.27 and 44,533.86

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Solution

The fourth proportional to 127,639.86, 191,547.27 and 44,533.86 is: 66,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,639.86 : 191,547.27 = 44,533.86 : x
  2. Step 2: Convert to fraction form
    127,639.86/191,547.27 = 44,533.86/x
  3. Step 3: Cross multiply
    127,639.86x = 191,547.27 × 44,533.86
  4. Step 4: Simplify right side
    127,639.86x = 8,530,339,305.56
  5. Step 5: Solve for x
    x = 8,530,339,305.56/127,639.86
  6. Step 6: Final answer
    x = 66,831.31

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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.