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Finding the Fourth Proportional to 134,817.40, 202,209.90 and 55,923.40

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Solution

The fourth proportional to 134,817.40, 202,209.90 and 55,923.40 is: 83,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,817.40 : 202,209.90 = 55,923.40 : x
  2. Step 2: Convert to fraction form
    134,817.40/202,209.90 = 55,923.40/x
  3. Step 3: Cross multiply
    134,817.40x = 202,209.90 × 55,923.40
  4. Step 4: Simplify right side
    134,817.40x = 11,308,265,121.66
  5. Step 5: Solve for x
    x = 11,308,265,121.66/134,817.40
  6. Step 6: Final answer
    x = 83,878.38

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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.