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Finding the Fourth Proportional to 261,976.44, 392,968.98 and 95,763

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Solution

The fourth proportional to 261,976.44, 392,968.98 and 95,763 is: 143,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,976.44 : 392,968.98 = 95,763 : x
  2. Step 2: Convert to fraction form
    261,976.44/392,968.98 = 95,763/x
  3. Step 3: Cross multiply
    261,976.44x = 392,968.98 × 95,763
  4. Step 4: Simplify right side
    261,976.44x = 37,631,888,431.74
  5. Step 5: Solve for x
    x = 37,631,888,431.74/261,976.44
  6. Step 6: Final answer
    x = 143,646.08

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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.