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Finding the Fourth Proportional to 263,405.70, 395,109.57 and 63,725.76

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Solution

The fourth proportional to 263,405.70, 395,109.57 and 63,725.76 is: 95,588.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,405.70 : 395,109.57 = 63,725.76 : x
  2. Step 2: Convert to fraction form
    263,405.70/395,109.57 = 63,725.76/x
  3. Step 3: Cross multiply
    263,405.70x = 395,109.57 × 63,725.76
  4. Step 4: Simplify right side
    263,405.70x = 25,178,658,802.51
  5. Step 5: Solve for x
    x = 25,178,658,802.51/263,405.70
  6. Step 6: Final answer
    x = 95,588.89

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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.