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Finding the Fourth Proportional to 107,777.80, 161,673.90 and 36,699.40

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Solution

The fourth proportional to 107,777.80, 161,673.90 and 36,699.40 is: 55,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,777.80 : 161,673.90 = 36,699.40 : x
  2. Step 2: Convert to fraction form
    107,777.80/161,673.90 = 36,699.40/x
  3. Step 3: Cross multiply
    107,777.80x = 161,673.90 × 36,699.40
  4. Step 4: Simplify right side
    107,777.80x = 5,933,335,125.66
  5. Step 5: Solve for x
    x = 5,933,335,125.66/107,777.80
  6. Step 6: Final answer
    x = 55,051.55

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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.