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Finding the Fourth Proportional to 328,448.97, 492,699.39 and 103,826.52

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Solution

The fourth proportional to 328,448.97, 492,699.39 and 103,826.52 is: 155,747.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,448.97 : 492,699.39 = 103,826.52 : x
  2. Step 2: Convert to fraction form
    328,448.97/492,699.39 = 103,826.52/x
  3. Step 3: Cross multiply
    328,448.97x = 492,699.39 × 103,826.52
  4. Step 4: Simplify right side
    328,448.97x = 51,155,263,069.82
  5. Step 5: Solve for x
    x = 51,155,263,069.82/328,448.97
  6. Step 6: Final answer
    x = 155,747.98

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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.