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Finding the Fourth Proportional to 118,466.43, 163,483.97 and 64,752.09

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Solution

The fourth proportional to 118,466.43, 163,483.97 and 64,752.09 is: 89,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,466.43 : 163,483.97 = 64,752.09 : x
  2. Step 2: Convert to fraction form
    118,466.43/163,483.97 = 64,752.09/x
  3. Step 3: Cross multiply
    118,466.43x = 163,483.97 × 64,752.09
  4. Step 4: Simplify right side
    118,466.43x = 10,585,928,415.24
  5. Step 5: Solve for x
    x = 10,585,928,415.24/118,466.43
  6. Step 6: Final answer
    x = 89,358.04

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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.