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Finding the Fourth Proportional to 98,796.56, 136,339.66 and 53,474.52

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Solution

The fourth proportional to 98,796.56, 136,339.66 and 53,474.52 is: 73,795.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,796.56 : 136,339.66 = 53,474.52 : x
  2. Step 2: Convert to fraction form
    98,796.56/136,339.66 = 53,474.52/x
  3. Step 3: Cross multiply
    98,796.56x = 136,339.66 × 53,474.52
  4. Step 4: Simplify right side
    98,796.56x = 7,290,697,741.78
  5. Step 5: Solve for x
    x = 7,290,697,741.78/98,796.56
  6. Step 6: Final answer
    x = 73,795.06

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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.