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Finding the Fourth Proportional to 319,062.80, 440,305.76 and 175,822.80

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Solution

The fourth proportional to 319,062.80, 440,305.76 and 175,822.80 is: 242,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,062.80 : 440,305.76 = 175,822.80 : x
  2. Step 2: Convert to fraction form
    319,062.80/440,305.76 = 175,822.80/x
  3. Step 3: Cross multiply
    319,062.80x = 440,305.76 × 175,822.80
  4. Step 4: Simplify right side
    319,062.80x = 77,415,791,579.33
  5. Step 5: Solve for x
    x = 77,415,791,579.33/319,062.80
  6. Step 6: Final answer
    x = 242,634.97

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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.