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Finding the Fourth Proportional to 144,140.94, 216,216.88 and 38,959.96

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Solution

The fourth proportional to 144,140.94, 216,216.88 and 38,959.96 is: 58,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,140.94 : 216,216.88 = 38,959.96 : x
  2. Step 2: Convert to fraction form
    144,140.94/216,216.88 = 38,959.96/x
  3. Step 3: Cross multiply
    144,140.94x = 216,216.88 × 38,959.96
  4. Step 4: Simplify right side
    144,140.94x = 8,423,800,996.12
  5. Step 5: Solve for x
    x = 8,423,800,996.12/144,140.94
  6. Step 6: Final answer
    x = 58,441.42

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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.