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Finding the Fourth Proportional to 114,414.54, 157,859.43 and 66,012.63

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Solution

The fourth proportional to 114,414.54, 157,859.43 and 66,012.63 is: 91,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,414.54 : 157,859.43 = 66,012.63 : x
  2. Step 2: Convert to fraction form
    114,414.54/157,859.43 = 66,012.63/x
  3. Step 3: Cross multiply
    114,414.54x = 157,859.43 × 66,012.63
  4. Step 4: Simplify right side
    114,414.54x = 10,420,716,144.60
  5. Step 5: Solve for x
    x = 10,420,716,144.60/114,414.54
  6. Step 6: Final answer
    x = 91,078.60

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1.5x scale

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.