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Finding the Fourth Proportional to 139,525.36, 209,276.99 and 44,730.30

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Solution

The fourth proportional to 139,525.36, 209,276.99 and 44,730.30 is: 67,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,525.36 : 209,276.99 = 44,730.30 : x
  2. Step 2: Convert to fraction form
    139,525.36/209,276.99 = 44,730.30/x
  3. Step 3: Cross multiply
    139,525.36x = 209,276.99 × 44,730.30
  4. Step 4: Simplify right side
    139,525.36x = 9,361,022,811.89
  5. Step 5: Solve for x
    x = 9,361,022,811.89/139,525.36
  6. Step 6: Final answer
    x = 67,091.91

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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.