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Finding the Fourth Proportional to 97,489.60, 134,538.09 and 55,048.43

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Solution

The fourth proportional to 97,489.60, 134,538.09 and 55,048.43 is: 75,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,489.60 : 134,538.09 = 55,048.43 : x
  2. Step 2: Convert to fraction form
    97,489.60/134,538.09 = 55,048.43/x
  3. Step 3: Cross multiply
    97,489.60x = 134,538.09 × 55,048.43
  4. Step 4: Simplify right side
    97,489.60x = 7,406,110,629.70
  5. Step 5: Solve for x
    x = 7,406,110,629.70/97,489.60
  6. Step 6: Final answer
    x = 75,968.21

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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.