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Finding the Fourth Proportional to 310,675.15, 428,744.03 and 174,708.42

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Solution

The fourth proportional to 310,675.15, 428,744.03 and 174,708.42 is: 241,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,675.15 : 428,744.03 = 174,708.42 : x
  2. Step 2: Convert to fraction form
    310,675.15/428,744.03 = 174,708.42/x
  3. Step 3: Cross multiply
    310,675.15x = 428,744.03 × 174,708.42
  4. Step 4: Simplify right side
    310,675.15x = 74,905,192,065.73
  5. Step 5: Solve for x
    x = 74,905,192,065.73/310,675.15
  6. Step 6: Final answer
    x = 241,104.55

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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.