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Finding the Fourth Proportional to 98,157.56, 135,458.34 and 53,445.56

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Solution

The fourth proportional to 98,157.56, 135,458.34 and 53,445.56 is: 73,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,157.56 : 135,458.34 = 53,445.56 : x
  2. Step 2: Convert to fraction form
    98,157.56/135,458.34 = 53,445.56/x
  3. Step 3: Cross multiply
    98,157.56x = 135,458.34 × 53,445.56
  4. Step 4: Simplify right side
    98,157.56x = 7,239,646,837.97
  5. Step 5: Solve for x
    x = 7,239,646,837.97/98,157.56
  6. Step 6: Final answer
    x = 73,755.37

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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.