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Finding the Fourth Proportional to 98,455.50, 146,914.97 and 87,852.60

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Solution

The fourth proportional to 98,455.50, 146,914.97 and 87,852.60 is: 131,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,455.50 : 146,914.97 = 87,852.60 : x
  2. Step 2: Convert to fraction form
    98,455.50/146,914.97 = 87,852.60/x
  3. Step 3: Cross multiply
    98,455.50x = 146,914.97 × 87,852.60
  4. Step 4: Simplify right side
    98,455.50x = 12,906,861,654.16
  5. Step 5: Solve for x
    x = 12,906,861,654.16/98,455.50
  6. Step 6: Final answer
    x = 131,093.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.