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Finding the Fourth Proportional to 124,466.92, 186,638.94 and 54,315.88

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Solution

The fourth proportional to 124,466.92, 186,638.94 and 54,315.88 is: 81,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,466.92 : 186,638.94 = 54,315.88 : x
  2. Step 2: Convert to fraction form
    124,466.92/186,638.94 = 54,315.88/x
  3. Step 3: Cross multiply
    124,466.92x = 186,638.94 × 54,315.88
  4. Step 4: Simplify right side
    124,466.92x = 10,137,458,268.37
  5. Step 5: Solve for x
    x = 10,137,458,268.37/124,466.92
  6. Step 6: Final answer
    x = 81,447.01

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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.