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Finding the Fourth Proportional to 134,474.80, 201,625.80 and 55,620.40

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Solution

The fourth proportional to 134,474.80, 201,625.80 and 55,620.40 is: 83,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,474.80 : 201,625.80 = 55,620.40 : x
  2. Step 2: Convert to fraction form
    134,474.80/201,625.80 = 55,620.40/x
  3. Step 3: Cross multiply
    134,474.80x = 201,625.80 × 55,620.40
  4. Step 4: Simplify right side
    134,474.80x = 11,214,507,646.32
  5. Step 5: Solve for x
    x = 11,214,507,646.32/134,474.80
  6. Step 6: Final answer
    x = 83,394.86

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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.