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Finding the Fourth Proportional to 168,728.94, 253,487.07 and 98,657.46

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Solution

The fourth proportional to 168,728.94, 253,487.07 and 98,657.46 is: 148,216.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,728.94 : 253,487.07 = 98,657.46 : x
  2. Step 2: Convert to fraction form
    168,728.94/253,487.07 = 98,657.46/x
  3. Step 3: Cross multiply
    168,728.94x = 253,487.07 × 98,657.46
  4. Step 4: Simplify right side
    168,728.94x = 25,008,390,469.04
  5. Step 5: Solve for x
    x = 25,008,390,469.04/168,728.94
  6. Step 6: Final answer
    x = 148,216.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.