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Finding the Fourth Proportional to 118,794.87, 163,874.73 and 73,458.36

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Solution

The fourth proportional to 118,794.87, 163,874.73 and 73,458.36 is: 101,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,794.87 : 163,874.73 = 73,458.36 : x
  2. Step 2: Convert to fraction form
    118,794.87/163,874.73 = 73,458.36/x
  3. Step 3: Cross multiply
    118,794.87x = 163,874.73 × 73,458.36
  4. Step 4: Simplify right side
    118,794.87x = 12,037,968,911.24
  5. Step 5: Solve for x
    x = 12,037,968,911.24/118,794.87
  6. Step 6: Final answer
    x = 101,334.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.