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Finding the Fourth Proportional to 261,702, 392,559.48 and 95,490

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Solution

The fourth proportional to 261,702, 392,559.48 and 95,490 is: 143,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,702 : 392,559.48 = 95,490 : x
  2. Step 2: Convert to fraction form
    261,702/392,559.48 = 95,490/x
  3. Step 3: Cross multiply
    261,702x = 392,559.48 × 95,490
  4. Step 4: Simplify right side
    261,702x = 37,485,504,745.20
  5. Step 5: Solve for x
    x = 37,485,504,745.20/261,702
  6. Step 6: Final answer
    x = 143,237.36

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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.