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Finding the Fourth Proportional to 118,999.50, 164,208.78 and 68,002.08

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Solution

The fourth proportional to 118,999.50, 164,208.78 and 68,002.08 is: 93,836.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,999.50 : 164,208.78 = 68,002.08 : x
  2. Step 2: Convert to fraction form
    118,999.50/164,208.78 = 68,002.08/x
  3. Step 3: Cross multiply
    118,999.50x = 164,208.78 × 68,002.08
  4. Step 4: Simplify right side
    118,999.50x = 11,166,538,594.26
  5. Step 5: Solve for x
    x = 11,166,538,594.26/118,999.50
  6. Step 6: Final answer
    x = 93,836.85

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1.5x scale

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.