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Finding the Fourth Proportional to 134,418.40, 201,692.40 and 94,890.40

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Solution

The fourth proportional to 134,418.40, 201,692.40 and 94,890.40 is: 142,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,418.40 : 201,692.40 = 94,890.40 : x
  2. Step 2: Convert to fraction form
    134,418.40/201,692.40 = 94,890.40/x
  3. Step 3: Cross multiply
    134,418.40x = 201,692.40 × 94,890.40
  4. Step 4: Simplify right side
    134,418.40x = 19,138,672,512.96
  5. Step 5: Solve for x
    x = 19,138,672,512.96/134,418.40
  6. Step 6: Final answer
    x = 142,381.34

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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.