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Finding the Fourth Proportional to 98,704.56, 136,215.48 and 53,992.56

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Solution

The fourth proportional to 98,704.56, 136,215.48 and 53,992.56 is: 74,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,704.56 : 136,215.48 = 53,992.56 : x
  2. Step 2: Convert to fraction form
    98,704.56/136,215.48 = 53,992.56/x
  3. Step 3: Cross multiply
    98,704.56x = 136,215.48 × 53,992.56
  4. Step 4: Simplify right side
    98,704.56x = 7,354,622,476.83
  5. Step 5: Solve for x
    x = 7,354,622,476.83/98,704.56
  6. Step 6: Final answer
    x = 74,511.48

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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.