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Finding the Fourth Proportional to 137,868.01, 206,816.40 and 38,028.22

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Solution

The fourth proportional to 137,868.01, 206,816.40 and 38,028.22 is: 57,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,868.01 : 206,816.40 = 38,028.22 : x
  2. Step 2: Convert to fraction form
    137,868.01/206,816.40 = 38,028.22/x
  3. Step 3: Cross multiply
    137,868.01x = 206,816.40 × 38,028.22
  4. Step 4: Simplify right side
    137,868.01x = 7,864,859,558.81
  5. Step 5: Solve for x
    x = 7,864,859,558.81/137,868.01
  6. Step 6: Final answer
    x = 57,046.30

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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.