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Finding the Fourth Proportional to 98,323.69, 135,654.87 and 58,051.03

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Solution

The fourth proportional to 98,323.69, 135,654.87 and 58,051.03 is: 80,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,323.69 : 135,654.87 = 58,051.03 : x
  2. Step 2: Convert to fraction form
    98,323.69/135,654.87 = 58,051.03/x
  3. Step 3: Cross multiply
    98,323.69x = 135,654.87 × 58,051.03
  4. Step 4: Simplify right side
    98,323.69x = 7,874,904,928.02
  5. Step 5: Solve for x
    x = 7,874,904,928.02/98,323.69
  6. Step 6: Final answer
    x = 80,091.63

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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.