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Finding the Fourth Proportional to 188,509.44, 260,136.43 and 103,625.89

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Solution

The fourth proportional to 188,509.44, 260,136.43 and 103,625.89 is: 143,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,509.44 : 260,136.43 = 103,625.89 : x
  2. Step 2: Convert to fraction form
    188,509.44/260,136.43 = 103,625.89/x
  3. Step 3: Cross multiply
    188,509.44x = 260,136.43 × 103,625.89
  4. Step 4: Simplify right side
    188,509.44x = 26,956,869,080.17
  5. Step 5: Solve for x
    x = 26,956,869,080.17/188,509.44
  6. Step 6: Final answer
    x = 143,000.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.