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Finding the Fourth Proportional to 308,052, 425,113.04 and 166,740

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Solution

The fourth proportional to 308,052, 425,113.04 and 166,740 is: 230,101.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,052 : 425,113.04 = 166,740 : x
  2. Step 2: Convert to fraction form
    308,052/425,113.04 = 166,740/x
  3. Step 3: Cross multiply
    308,052x = 425,113.04 × 166,740
  4. Step 4: Simplify right side
    308,052x = 70,883,348,289.60
  5. Step 5: Solve for x
    x = 70,883,348,289.60/308,052
  6. Step 6: Final answer
    x = 230,101.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.