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Finding the Fourth Proportional to 118,333.36, 163,258.20 and 75,914.80

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Solution

The fourth proportional to 118,333.36, 163,258.20 and 75,914.80 is: 104,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,333.36 : 163,258.20 = 75,914.80 : x
  2. Step 2: Convert to fraction form
    118,333.36/163,258.20 = 75,914.80/x
  3. Step 3: Cross multiply
    118,333.36x = 163,258.20 × 75,914.80
  4. Step 4: Simplify right side
    118,333.36x = 12,393,713,601.36
  5. Step 5: Solve for x
    x = 12,393,713,601.36/118,333.36
  6. Step 6: Final answer
    x = 104,735.58

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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.