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Finding the Fourth Proportional to 144,325.20, 216,449.40 and 44,485.20

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Solution

The fourth proportional to 144,325.20, 216,449.40 and 44,485.20 is: 66,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,325.20 : 216,449.40 = 44,485.20 : x
  2. Step 2: Convert to fraction form
    144,325.20/216,449.40 = 44,485.20/x
  3. Step 3: Cross multiply
    144,325.20x = 216,449.40 × 44,485.20
  4. Step 4: Simplify right side
    144,325.20x = 9,628,794,848.88
  5. Step 5: Solve for x
    x = 9,628,794,848.88/144,325.20
  6. Step 6: Final answer
    x = 66,715.96

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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.