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Finding the Fourth Proportional to 290,797.36, 436,017.40 and 113,097.24

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Solution

The fourth proportional to 290,797.36, 436,017.40 and 113,097.24 is: 169,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,797.36 : 436,017.40 = 113,097.24 : x
  2. Step 2: Convert to fraction form
    290,797.36/436,017.40 = 113,097.24/x
  3. Step 3: Cross multiply
    290,797.36x = 436,017.40 × 113,097.24
  4. Step 4: Simplify right side
    290,797.36x = 49,312,364,531.98
  5. Step 5: Solve for x
    x = 49,312,364,531.98/290,797.36
  6. Step 6: Final answer
    x = 169,576.38

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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.