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Finding the Fourth Proportional to 106,838.60, 159,912.30 and 98,544.20

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Solution

The fourth proportional to 106,838.60, 159,912.30 and 98,544.20 is: 147,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,838.60 : 159,912.30 = 98,544.20 : x
  2. Step 2: Convert to fraction form
    106,838.60/159,912.30 = 98,544.20/x
  3. Step 3: Cross multiply
    106,838.60x = 159,912.30 × 98,544.20
  4. Step 4: Simplify right side
    106,838.60x = 15,758,429,673.66
  5. Step 5: Solve for x
    x = 15,758,429,673.66/106,838.60
  6. Step 6: Final answer
    x = 147,497.53

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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.