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Finding the Fourth Proportional to 74,905.73, 103,407.19 and 46,241.19

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Solution

The fourth proportional to 74,905.73, 103,407.19 and 46,241.19 is: 63,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,905.73 : 103,407.19 = 46,241.19 : x
  2. Step 2: Convert to fraction form
    74,905.73/103,407.19 = 46,241.19/x
  3. Step 3: Cross multiply
    74,905.73x = 103,407.19 × 46,241.19
  4. Step 4: Simplify right side
    74,905.73x = 4,781,671,680.02
  5. Step 5: Solve for x
    x = 4,781,671,680.02/74,905.73
  6. Step 6: Final answer
    x = 63,835.86

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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.