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Finding the Fourth Proportional to 208,141.41, 312,155.40 and 58,372.41

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Solution

The fourth proportional to 208,141.41, 312,155.40 and 58,372.41 is: 87,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,141.41 : 312,155.40 = 58,372.41 : x
  2. Step 2: Convert to fraction form
    208,141.41/312,155.40 = 58,372.41/x
  3. Step 3: Cross multiply
    208,141.41x = 312,155.40 × 58,372.41
  4. Step 4: Simplify right side
    208,141.41x = 18,221,262,992.51
  5. Step 5: Solve for x
    x = 18,221,262,992.51/208,141.41
  6. Step 6: Final answer
    x = 87,542.71

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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.