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Finding the Fourth Proportional to 319,046.58, 440,285.76 and 175,803.66

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Solution

The fourth proportional to 319,046.58, 440,285.76 and 175,803.66 is: 242,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,046.58 : 440,285.76 = 175,803.66 : x
  2. Step 2: Convert to fraction form
    319,046.58/440,285.76 = 175,803.66/x
  3. Step 3: Cross multiply
    319,046.58x = 440,285.76 × 175,803.66
  4. Step 4: Simplify right side
    319,046.58x = 77,403,848,053.88
  5. Step 5: Solve for x
    x = 77,403,848,053.88/319,046.58
  6. Step 6: Final answer
    x = 242,609.87

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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.