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Finding the Fourth Proportional to 195,487.67, 269,692.80 and 118,945.40

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Solution

The fourth proportional to 195,487.67, 269,692.80 and 118,945.40 is: 164,095.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,487.67 : 269,692.80 = 118,945.40 : x
  2. Step 2: Convert to fraction form
    195,487.67/269,692.80 = 118,945.40/x
  3. Step 3: Cross multiply
    195,487.67x = 269,692.80 × 118,945.40
  4. Step 4: Simplify right side
    195,487.67x = 32,078,717,973.12
  5. Step 5: Solve for x
    x = 32,078,717,973.12/195,487.67
  6. Step 6: Final answer
    x = 164,095.86

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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.