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Finding the Fourth Proportional to 114,949.87, 158,632.23 and 64,648.87

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Solution

The fourth proportional to 114,949.87, 158,632.23 and 64,648.87 is: 89,216.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,949.87 : 158,632.23 = 64,648.87 : x
  2. Step 2: Convert to fraction form
    114,949.87/158,632.23 = 64,648.87/x
  3. Step 3: Cross multiply
    114,949.87x = 158,632.23 × 64,648.87
  4. Step 4: Simplify right side
    114,949.87x = 10,255,394,415.08
  5. Step 5: Solve for x
    x = 10,255,394,415.08/114,949.87
  6. Step 6: Final answer
    x = 89,216.23

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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.