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Finding the Fourth Proportional to 98,996.48, 136,614.72 and 54,284.48

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Solution

The fourth proportional to 98,996.48, 136,614.72 and 54,284.48 is: 74,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,996.48 : 136,614.72 = 54,284.48 : x
  2. Step 2: Convert to fraction form
    98,996.48/136,614.72 = 54,284.48/x
  3. Step 3: Cross multiply
    98,996.48x = 136,614.72 × 54,284.48
  4. Step 4: Simplify right side
    98,996.48x = 7,416,059,035.55
  5. Step 5: Solve for x
    x = 7,416,059,035.55/98,996.48
  6. Step 6: Final answer
    x = 74,912.35

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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.