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Finding the Fourth Proportional to 118,563.84, 163,668.48 and 73,873.92

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Solution

The fourth proportional to 118,563.84, 163,668.48 and 73,873.92 is: 101,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,563.84 : 163,668.48 = 73,873.92 : x
  2. Step 2: Convert to fraction form
    118,563.84/163,668.48 = 73,873.92/x
  3. Step 3: Cross multiply
    118,563.84x = 163,668.48 × 73,873.92
  4. Step 4: Simplify right side
    118,563.84x = 12,090,832,198.04
  5. Step 5: Solve for x
    x = 12,090,832,198.04/118,563.84
  6. Step 6: Final answer
    x = 101,977.40

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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.