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Finding the Fourth Proportional to 107,859.60, 161,760.60 and 37,731.60

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Solution

The fourth proportional to 107,859.60, 161,760.60 and 37,731.60 is: 56,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,859.60 : 161,760.60 = 37,731.60 : x
  2. Step 2: Convert to fraction form
    107,859.60/161,760.60 = 37,731.60/x
  3. Step 3: Cross multiply
    107,859.60x = 161,760.60 × 37,731.60
  4. Step 4: Simplify right side
    107,859.60x = 6,103,486,254.96
  5. Step 5: Solve for x
    x = 6,103,486,254.96/107,859.60
  6. Step 6: Final answer
    x = 56,587.33

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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.