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Finding the Fourth Proportional to 144,710.04, 216,949.15 and 68,770.47

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Solution

The fourth proportional to 144,710.04, 216,949.15 and 68,770.47 is: 103,100.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,710.04 : 216,949.15 = 68,770.47 : x
  2. Step 2: Convert to fraction form
    144,710.04/216,949.15 = 68,770.47/x
  3. Step 3: Cross multiply
    144,710.04x = 216,949.15 × 68,770.47
  4. Step 4: Simplify right side
    144,710.04x = 14,919,695,653.23
  5. Step 5: Solve for x
    x = 14,919,695,653.23/144,710.04
  6. Step 6: Final answer
    x = 103,100.62

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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.