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Finding the Fourth Proportional to 159,783.60, 239,560.20 and 104,410.80

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Solution

The fourth proportional to 159,783.60, 239,560.20 and 104,410.80 is: 156,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,783.60 : 239,560.20 = 104,410.80 : x
  2. Step 2: Convert to fraction form
    159,783.60/239,560.20 = 104,410.80/x
  3. Step 3: Cross multiply
    159,783.60x = 239,560.20 × 104,410.80
  4. Step 4: Simplify right side
    159,783.60x = 25,012,672,130.16
  5. Step 5: Solve for x
    x = 25,012,672,130.16/159,783.60
  6. Step 6: Final answer
    x = 156,540.92

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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.