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Finding the Fourth Proportional to 124,458.30, 186,629.10 and 45,517.32

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Solution

The fourth proportional to 124,458.30, 186,629.10 and 45,517.32 is: 68,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,458.30 : 186,629.10 = 45,517.32 : x
  2. Step 2: Convert to fraction form
    124,458.30/186,629.10 = 45,517.32/x
  3. Step 3: Cross multiply
    124,458.30x = 186,629.10 × 45,517.32
  4. Step 4: Simplify right side
    124,458.30x = 8,494,856,466.01
  5. Step 5: Solve for x
    x = 8,494,856,466.01/124,458.30
  6. Step 6: Final answer
    x = 68,254.64

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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.