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Finding the Fourth Proportional to 86,709.36, 119,658.46 and 46,965.36

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Solution

The fourth proportional to 86,709.36, 119,658.46 and 46,965.36 is: 64,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,709.36 : 119,658.46 = 46,965.36 : x
  2. Step 2: Convert to fraction form
    86,709.36/119,658.46 = 46,965.36/x
  3. Step 3: Cross multiply
    86,709.36x = 119,658.46 × 46,965.36
  4. Step 4: Simplify right side
    86,709.36x = 5,619,802,650.95
  5. Step 5: Solve for x
    x = 5,619,802,650.95/86,709.36
  6. Step 6: Final answer
    x = 64,811.95

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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.