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Finding the Fourth Proportional to 74,154.61, 102,342.34 and 41,890.59

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Solution

The fourth proportional to 74,154.61, 102,342.34 and 41,890.59 is: 57,814.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,154.61 : 102,342.34 = 41,890.59 : x
  2. Step 2: Convert to fraction form
    74,154.61/102,342.34 = 41,890.59/x
  3. Step 3: Cross multiply
    74,154.61x = 102,342.34 × 41,890.59
  4. Step 4: Simplify right side
    74,154.61x = 4,287,181,004.58
  5. Step 5: Solve for x
    x = 4,287,181,004.58/74,154.61
  6. Step 6: Final answer
    x = 57,814.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.