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Finding the Fourth Proportional to 190,616.58, 263,059.47 and 105,733.62

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Solution

The fourth proportional to 190,616.58, 263,059.47 and 105,733.62 is: 145,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,616.58 : 263,059.47 = 105,733.62 : x
  2. Step 2: Convert to fraction form
    190,616.58/263,059.47 = 105,733.62/x
  3. Step 3: Cross multiply
    190,616.58x = 263,059.47 × 105,733.62
  4. Step 4: Simplify right side
    190,616.58x = 27,814,230,038.38
  5. Step 5: Solve for x
    x = 27,814,230,038.38/190,616.58
  6. Step 6: Final answer
    x = 145,917.16

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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.