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Finding the Fourth Proportional to 97,796.70, 134,765.91 and 69,422.94

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Solution

The fourth proportional to 97,796.70, 134,765.91 and 69,422.94 is: 95,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,796.70 : 134,765.91 = 69,422.94 : x
  2. Step 2: Convert to fraction form
    97,796.70/134,765.91 = 69,422.94/x
  3. Step 3: Cross multiply
    97,796.70x = 134,765.91 × 69,422.94
  4. Step 4: Simplify right side
    97,796.70x = 9,355,845,683.98
  5. Step 5: Solve for x
    x = 9,355,845,683.98/97,796.70
  6. Step 6: Final answer
    x = 95,666.27

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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.