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Finding the Fourth Proportional to 371,608.41, 557,433.81 and 105,348

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Solution

The fourth proportional to 371,608.41, 557,433.81 and 105,348 is: 158,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,608.41 : 557,433.81 = 105,348 : x
  2. Step 2: Convert to fraction form
    371,608.41/557,433.81 = 105,348/x
  3. Step 3: Cross multiply
    371,608.41x = 557,433.81 × 105,348
  4. Step 4: Simplify right side
    371,608.41x = 58,724,537,015.88
  5. Step 5: Solve for x
    x = 58,724,537,015.88/371,608.41
  6. Step 6: Final answer
    x = 158,028.01

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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.