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Finding the Fourth Proportional to 98,796.84, 136,339.62 and 53,474.81

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Solution

The fourth proportional to 98,796.84, 136,339.62 and 53,474.81 is: 73,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,796.84 : 136,339.62 = 53,474.81 : x
  2. Step 2: Convert to fraction form
    98,796.84/136,339.62 = 53,474.81/x
  3. Step 3: Cross multiply
    98,796.84x = 136,339.62 × 53,474.81
  4. Step 4: Simplify right side
    98,796.84x = 7,290,735,274.97
  5. Step 5: Solve for x
    x = 7,290,735,274.97/98,796.84
  6. Step 6: Final answer
    x = 73,795.23

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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.