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Finding the Fourth Proportional to 98,295.61, 135,647.62 and 53,583.61

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Solution

The fourth proportional to 98,295.61, 135,647.62 and 53,583.61 is: 73,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,295.61 : 135,647.62 = 53,583.61 : x
  2. Step 2: Convert to fraction form
    98,295.61/135,647.62 = 53,583.61/x
  3. Step 3: Cross multiply
    98,295.61x = 135,647.62 × 53,583.61
  4. Step 4: Simplify right side
    98,295.61x = 7,268,489,167.51
  5. Step 5: Solve for x
    x = 7,268,489,167.51/98,295.61
  6. Step 6: Final answer
    x = 73,945.21

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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.