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Finding the Fourth Proportional to 188,504.59, 260,136.62 and 103,622.17

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Solution

The fourth proportional to 188,504.59, 260,136.62 and 103,622.17 is: 142,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,504.59 : 260,136.62 = 103,622.17 : x
  2. Step 2: Convert to fraction form
    188,504.59/260,136.62 = 103,622.17/x
  3. Step 3: Cross multiply
    188,504.59x = 260,136.62 × 103,622.17
  4. Step 4: Simplify right side
    188,504.59x = 26,955,921,060.87
  5. Step 5: Solve for x
    x = 26,955,921,060.87/188,504.59
  6. Step 6: Final answer
    x = 142,998.75

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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.