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Finding the Fourth Proportional to 95,969.70, 142,969.60 and 91,651.76

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Solution

The fourth proportional to 95,969.70, 142,969.60 and 91,651.76 is: 136,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,969.70 : 142,969.60 = 91,651.76 : x
  2. Step 2: Convert to fraction form
    95,969.70/142,969.60 = 91,651.76/x
  3. Step 3: Cross multiply
    95,969.70x = 142,969.60 × 91,651.76
  4. Step 4: Simplify right side
    95,969.70x = 13,103,415,466.50
  5. Step 5: Solve for x
    x = 13,103,415,466.50/95,969.70
  6. Step 6: Final answer
    x = 136,537.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.