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Finding the Fourth Proportional to 118,846.61, 178,339.99 and 44,019.31

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Solution

The fourth proportional to 118,846.61, 178,339.99 and 44,019.31 is: 66,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,846.61 : 178,339.99 = 44,019.31 : x
  2. Step 2: Convert to fraction form
    118,846.61/178,339.99 = 44,019.31/x
  3. Step 3: Cross multiply
    118,846.61x = 178,339.99 × 44,019.31
  4. Step 4: Simplify right side
    118,846.61x = 7,850,403,641.01
  5. Step 5: Solve for x
    x = 7,850,403,641.01/118,846.61
  6. Step 6: Final answer
    x = 66,054.93

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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.