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Finding the Fourth Proportional to 310,750.52, 428,848.52 and 174,790.80

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Solution

The fourth proportional to 310,750.52, 428,848.52 and 174,790.80 is: 241,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,750.52 : 428,848.52 = 174,790.80 : x
  2. Step 2: Convert to fraction form
    310,750.52/428,848.52 = 174,790.80/x
  3. Step 3: Cross multiply
    310,750.52x = 428,848.52 × 174,790.80
  4. Step 4: Simplify right side
    310,750.52x = 74,958,775,015.66
  5. Step 5: Solve for x
    x = 74,958,775,015.66/310,750.52
  6. Step 6: Final answer
    x = 241,218.51

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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.