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Finding the Fourth Proportional to 107,143.20, 160,599.60 and 40,557.60

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Solution

The fourth proportional to 107,143.20, 160,599.60 and 40,557.60 is: 60,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,143.20 : 160,599.60 = 40,557.60 : x
  2. Step 2: Convert to fraction form
    107,143.20/160,599.60 = 40,557.60/x
  3. Step 3: Cross multiply
    107,143.20x = 160,599.60 × 40,557.60
  4. Step 4: Simplify right side
    107,143.20x = 6,513,534,336.96
  5. Step 5: Solve for x
    x = 6,513,534,336.96/107,143.20
  6. Step 6: Final answer
    x = 60,792.79

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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.