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Finding the Fourth Proportional to 319,306.44, 440,633.44 and 176,066.44

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Solution

The fourth proportional to 319,306.44, 440,633.44 and 176,066.44 is: 242,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,306.44 : 440,633.44 = 176,066.44 : x
  2. Step 2: Convert to fraction form
    319,306.44/440,633.44 = 176,066.44/x
  3. Step 3: Cross multiply
    319,306.44x = 440,633.44 × 176,066.44
  4. Step 4: Simplify right side
    319,306.44x = 77,580,761,125.75
  5. Step 5: Solve for x
    x = 77,580,761,125.75/319,306.44
  6. Step 6: Final answer
    x = 242,966.48

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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.