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Finding the Fourth Proportional to 118,594.86, 163,668.16 and 68,310.06

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Solution

The fourth proportional to 118,594.86, 163,668.16 and 68,310.06 is: 94,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,594.86 : 163,668.16 = 68,310.06 : x
  2. Step 2: Convert to fraction form
    118,594.86/163,668.16 = 68,310.06/x
  3. Step 3: Cross multiply
    118,594.86x = 163,668.16 × 68,310.06
  4. Step 4: Simplify right side
    118,594.86x = 11,180,181,829.69
  5. Step 5: Solve for x
    x = 11,180,181,829.69/118,594.86
  6. Step 6: Final answer
    x = 94,272.06

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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.