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Finding the Fourth Proportional to 133,404.60, 199,620.90 and 98,412.60

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Solution

The fourth proportional to 133,404.60, 199,620.90 and 98,412.60 is: 147,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,404.60 : 199,620.90 = 98,412.60 : x
  2. Step 2: Convert to fraction form
    133,404.60/199,620.90 = 98,412.60/x
  3. Step 3: Cross multiply
    133,404.60x = 199,620.90 × 98,412.60
  4. Step 4: Simplify right side
    133,404.60x = 19,645,211,783.34
  5. Step 5: Solve for x
    x = 19,645,211,783.34/133,404.60
  6. Step 6: Final answer
    x = 147,260.38

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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.