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Finding the Fourth Proportional to 319,357.58, 479,064.03 and 117,008.64

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Solution

The fourth proportional to 319,357.58, 479,064.03 and 117,008.64 is: 175,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,357.58 : 479,064.03 = 117,008.64 : x
  2. Step 2: Convert to fraction form
    319,357.58/479,064.03 = 117,008.64/x
  3. Step 3: Cross multiply
    319,357.58x = 479,064.03 × 117,008.64
  4. Step 4: Simplify right side
    319,357.58x = 56,054,632,858.49
  5. Step 5: Solve for x
    x = 56,054,632,858.49/319,357.58
  6. Step 6: Final answer
    x = 175,523.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.