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Finding the Fourth Proportional to 192,361.03, 288,290.04 and 103,423.03

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Solution

The fourth proportional to 192,361.03, 288,290.04 and 103,423.03 is: 154,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,361.03 : 288,290.04 = 103,423.03 : x
  2. Step 2: Convert to fraction form
    192,361.03/288,290.04 = 103,423.03/x
  3. Step 3: Cross multiply
    192,361.03x = 288,290.04 × 103,423.03
  4. Step 4: Simplify right side
    192,361.03x = 29,815,828,347.06
  5. Step 5: Solve for x
    x = 29,815,828,347.06/192,361.03
  6. Step 6: Final answer
    x = 154,999.32

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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.