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Finding the Fourth Proportional to 107,893.15, 161,924.48 and 74,845.77

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Solution

The fourth proportional to 107,893.15, 161,924.48 and 74,845.77 is: 112,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,893.15 : 161,924.48 = 74,845.77 : x
  2. Step 2: Convert to fraction form
    107,893.15/161,924.48 = 74,845.77/x
  3. Step 3: Cross multiply
    107,893.15x = 161,924.48 × 74,845.77
  4. Step 4: Simplify right side
    107,893.15x = 12,119,362,387.45
  5. Step 5: Solve for x
    x = 12,119,362,387.45/107,893.15
  6. Step 6: Final answer
    x = 112,327.45

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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.