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Finding the Fourth Proportional to 319,186.12, 440,479.80 and 175,951.29

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Solution

The fourth proportional to 319,186.12, 440,479.80 and 175,951.29 is: 242,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,186.12 : 440,479.80 = 175,951.29 : x
  2. Step 2: Convert to fraction form
    319,186.12/440,479.80 = 175,951.29/x
  3. Step 3: Cross multiply
    319,186.12x = 440,479.80 × 175,951.29
  4. Step 4: Simplify right side
    319,186.12x = 77,502,987,708.18
  5. Step 5: Solve for x
    x = 77,502,987,708.18/319,186.12
  6. Step 6: Final answer
    x = 242,814.41

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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.