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Finding the Fourth Proportional to 107,860.80, 161,733.60 and 45,460.80

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Solution

The fourth proportional to 107,860.80, 161,733.60 and 45,460.80 is: 68,166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,860.80 : 161,733.60 = 45,460.80 : x
  2. Step 2: Convert to fraction form
    107,860.80/161,733.60 = 45,460.80/x
  3. Step 3: Cross multiply
    107,860.80x = 161,733.60 × 45,460.80
  4. Step 4: Simplify right side
    107,860.80x = 7,352,538,842.88
  5. Step 5: Solve for x
    x = 7,352,538,842.88/107,860.80
  6. Step 6: Final answer
    x = 68,166.92

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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.