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Finding the Fourth Proportional to 297,361.26, 445,804.02 and 155,135.16

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Solution

The fourth proportional to 297,361.26, 445,804.02 and 155,135.16 is: 232,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,361.26 : 445,804.02 = 155,135.16 : x
  2. Step 2: Convert to fraction form
    297,361.26/445,804.02 = 155,135.16/x
  3. Step 3: Cross multiply
    297,361.26x = 445,804.02 × 155,135.16
  4. Step 4: Simplify right side
    297,361.26x = 69,159,877,971.34
  5. Step 5: Solve for x
    x = 69,159,877,971.34/297,361.26
  6. Step 6: Final answer
    x = 232,578.64

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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.