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Finding the Fourth Proportional to 235,270.78, 324,675.73 and 127,840.82

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Solution

The fourth proportional to 235,270.78, 324,675.73 and 127,840.82 is: 176,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,270.78 : 324,675.73 = 127,840.82 : x
  2. Step 2: Convert to fraction form
    235,270.78/324,675.73 = 127,840.82/x
  3. Step 3: Cross multiply
    235,270.78x = 324,675.73 × 127,840.82
  4. Step 4: Simplify right side
    235,270.78x = 41,506,810,093.72
  5. Step 5: Solve for x
    x = 41,506,810,093.72/235,270.78
  6. Step 6: Final answer
    x = 176,421.44

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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.