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Finding the Fourth Proportional to 117,993.87, 162,831.36 and 64,278.84

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Solution

The fourth proportional to 117,993.87, 162,831.36 and 64,278.84 is: 88,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,993.87 : 162,831.36 = 64,278.84 : x
  2. Step 2: Convert to fraction form
    117,993.87/162,831.36 = 64,278.84/x
  3. Step 3: Cross multiply
    117,993.87x = 162,831.36 × 64,278.84
  4. Step 4: Simplify right side
    117,993.87x = 10,466,610,936.42
  5. Step 5: Solve for x
    x = 10,466,610,936.42/117,993.87
  6. Step 6: Final answer
    x = 88,704.70

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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.