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Finding the Fourth Proportional to 97,698.69, 134,824.59 and 55,265.40

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Solution

The fourth proportional to 97,698.69, 134,824.59 and 55,265.40 is: 76,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,698.69 : 134,824.59 = 55,265.40 : x
  2. Step 2: Convert to fraction form
    97,698.69/134,824.59 = 55,265.40/x
  3. Step 3: Cross multiply
    97,698.69x = 134,824.59 × 55,265.40
  4. Step 4: Simplify right side
    97,698.69x = 7,451,134,896.19
  5. Step 5: Solve for x
    x = 7,451,134,896.19/97,698.69
  6. Step 6: Final answer
    x = 76,266.48

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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.