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Finding the Fourth Proportional to 144,134.88, 216,202.35 and 73,969.44

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Solution

The fourth proportional to 144,134.88, 216,202.35 and 73,969.44 is: 110,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,134.88 : 216,202.35 = 73,969.44 : x
  2. Step 2: Convert to fraction form
    144,134.88/216,202.35 = 73,969.44/x
  3. Step 3: Cross multiply
    144,134.88x = 216,202.35 × 73,969.44
  4. Step 4: Simplify right side
    144,134.88x = 15,992,366,756.18
  5. Step 5: Solve for x
    x = 15,992,366,756.18/144,134.88
  6. Step 6: Final answer
    x = 110,954.18

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1.5x scale

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.