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Finding the Fourth Proportional to 98,608.96, 136,080.48 and 53,896.96

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Solution

The fourth proportional to 98,608.96, 136,080.48 and 53,896.96 is: 74,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,608.96 : 136,080.48 = 53,896.96 : x
  2. Step 2: Convert to fraction form
    98,608.96/136,080.48 = 53,896.96/x
  3. Step 3: Cross multiply
    98,608.96x = 136,080.48 × 53,896.96
  4. Step 4: Simplify right side
    98,608.96x = 7,334,324,187.34
  5. Step 5: Solve for x
    x = 7,334,324,187.34/98,608.96
  6. Step 6: Final answer
    x = 74,377.87

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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.