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Finding the Fourth Proportional to 319,281.53, 440,611.47 and 176,046.66

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Solution

The fourth proportional to 319,281.53, 440,611.47 and 176,046.66 is: 242,946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,281.53 : 440,611.47 = 176,046.66 : x
  2. Step 2: Convert to fraction form
    319,281.53/440,611.47 = 176,046.66/x
  3. Step 3: Cross multiply
    319,281.53x = 440,611.47 × 176,046.66
  4. Step 4: Simplify right side
    319,281.53x = 77,568,177,651.19
  5. Step 5: Solve for x
    x = 77,568,177,651.19/319,281.53
  6. Step 6: Final answer
    x = 242,946.03

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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.