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Finding the Fourth Proportional to 115,374.78, 173,080.47 and 48,815.41

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Solution

The fourth proportional to 115,374.78, 173,080.47 and 48,815.41 is: 73,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.78 : 173,080.47 = 48,815.41 : x
  2. Step 2: Convert to fraction form
    115,374.78/173,080.47 = 48,815.41/x
  3. Step 3: Cross multiply
    115,374.78x = 173,080.47 × 48,815.41
  4. Step 4: Simplify right side
    115,374.78x = 8,448,994,106.04
  5. Step 5: Solve for x
    x = 8,448,994,106.04/115,374.78
  6. Step 6: Final answer
    x = 73,230.86

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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.