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Finding the Fourth Proportional to 252,715.12, 348,662.90 and 166,716.80

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Solution

The fourth proportional to 252,715.12, 348,662.90 and 166,716.80 is: 230,013.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,715.12 : 348,662.90 = 166,716.80 : x
  2. Step 2: Convert to fraction form
    252,715.12/348,662.90 = 166,716.80/x
  3. Step 3: Cross multiply
    252,715.12x = 348,662.90 × 166,716.80
  4. Step 4: Simplify right side
    252,715.12x = 58,127,962,966.72
  5. Step 5: Solve for x
    x = 58,127,962,966.72/252,715.12
  6. Step 6: Final answer
    x = 230,013.79

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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.