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Finding the Fourth Proportional to 133,021.60, 199,629.60 and 93,655.60

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Solution

The fourth proportional to 133,021.60, 199,629.60 and 93,655.60 is: 140,551.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.60 : 199,629.60 = 93,655.60 : x
  2. Step 2: Convert to fraction form
    133,021.60/199,629.60 = 93,655.60/x
  3. Step 3: Cross multiply
    133,021.60x = 199,629.60 × 93,655.60
  4. Step 4: Simplify right side
    133,021.60x = 18,696,429,965.76
  5. Step 5: Solve for x
    x = 18,696,429,965.76/133,021.60
  6. Step 6: Final answer
    x = 140,551.83

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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.