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Finding the Fourth Proportional to 107,560.80, 161,341.20 and 37,390.80

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Solution

The fourth proportional to 107,560.80, 161,341.20 and 37,390.80 is: 56,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,560.80 : 161,341.20 = 37,390.80 : x
  2. Step 2: Convert to fraction form
    107,560.80/161,341.20 = 37,390.80/x
  3. Step 3: Cross multiply
    107,560.80x = 161,341.20 × 37,390.80
  4. Step 4: Simplify right side
    107,560.80x = 6,032,676,540.96
  5. Step 5: Solve for x
    x = 6,032,676,540.96/107,560.80
  6. Step 6: Final answer
    x = 56,086.20

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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.