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Finding the Fourth Proportional to 230,809.20, 345,954.60 and 97,666.80

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Solution

The fourth proportional to 230,809.20, 345,954.60 and 97,666.80 is: 146,390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,809.20 : 345,954.60 = 97,666.80 : x
  2. Step 2: Convert to fraction form
    230,809.20/345,954.60 = 97,666.80/x
  3. Step 3: Cross multiply
    230,809.20x = 345,954.60 × 97,666.80
  4. Step 4: Simplify right side
    230,809.20x = 33,788,278,727.28
  5. Step 5: Solve for x
    x = 33,788,278,727.28/230,809.20
  6. Step 6: Final answer
    x = 146,390.52

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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.