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Finding the Fourth Proportional to 83,187.87, 124,831.22 and 30,634.26

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Solution

The fourth proportional to 83,187.87, 124,831.22 and 30,634.26 is: 45,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,187.87 : 124,831.22 = 30,634.26 : x
  2. Step 2: Convert to fraction form
    83,187.87/124,831.22 = 30,634.26/x
  3. Step 3: Cross multiply
    83,187.87x = 124,831.22 × 30,634.26
  4. Step 4: Simplify right side
    83,187.87x = 3,824,111,896.43
  5. Step 5: Solve for x
    x = 3,824,111,896.43/83,187.87
  6. Step 6: Final answer
    x = 45,969.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.