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Finding the Fourth Proportional to 133,376.80, 199,627.80 and 103,633.60

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Solution

The fourth proportional to 133,376.80, 199,627.80 and 103,633.60 is: 155,110.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,376.80 : 199,627.80 = 103,633.60 : x
  2. Step 2: Convert to fraction form
    133,376.80/199,627.80 = 103,633.60/x
  3. Step 3: Cross multiply
    133,376.80x = 199,627.80 × 103,633.60
  4. Step 4: Simplify right side
    133,376.80x = 20,688,147,574.08
  5. Step 5: Solve for x
    x = 20,688,147,574.08/133,376.80
  6. Step 6: Final answer
    x = 155,110.54

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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.