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Finding the Fourth Proportional to 48,986.60, 73,479.90 and 44,071.40

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Solution

The fourth proportional to 48,986.60, 73,479.90 and 44,071.40 is: 66,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,986.60 : 73,479.90 = 44,071.40 : x
  2. Step 2: Convert to fraction form
    48,986.60/73,479.90 = 44,071.40/x
  3. Step 3: Cross multiply
    48,986.60x = 73,479.90 × 44,071.40
  4. Step 4: Simplify right side
    48,986.60x = 3,238,362,064.86
  5. Step 5: Solve for x
    x = 3,238,362,064.86/48,986.60
  6. Step 6: Final answer
    x = 66,107.10

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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.