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Finding the Fourth Proportional to 124,622.60, 186,912.30 and 45,696.20

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Solution

The fourth proportional to 124,622.60, 186,912.30 and 45,696.20 is: 68,536.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,622.60 : 186,912.30 = 45,696.20 : x
  2. Step 2: Convert to fraction form
    124,622.60/186,912.30 = 45,696.20/x
  3. Step 3: Cross multiply
    124,622.60x = 186,912.30 × 45,696.20
  4. Step 4: Simplify right side
    124,622.60x = 8,541,181,843.26
  5. Step 5: Solve for x
    x = 8,541,181,843.26/124,622.60
  6. Step 6: Final answer
    x = 68,536.38

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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.