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Finding the Fourth Proportional to 107,830.60, 161,750.70 and 36,752.20

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Solution

The fourth proportional to 107,830.60, 161,750.70 and 36,752.20 is: 55,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,830.60 : 161,750.70 = 36,752.20 : x
  2. Step 2: Convert to fraction form
    107,830.60/161,750.70 = 36,752.20/x
  3. Step 3: Cross multiply
    107,830.60x = 161,750.70 × 36,752.20
  4. Step 4: Simplify right side
    107,830.60x = 5,944,694,076.54
  5. Step 5: Solve for x
    x = 5,944,694,076.54/107,830.60
  6. Step 6: Final answer
    x = 55,129.94

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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.