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Finding the Fourth Proportional to 319,313.88, 479,035.62 and 119,630.52

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Solution

The fourth proportional to 319,313.88, 479,035.62 and 119,630.52 is: 179,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,313.88 : 479,035.62 = 119,630.52 : x
  2. Step 2: Convert to fraction form
    319,313.88/479,035.62 = 119,630.52/x
  3. Step 3: Cross multiply
    319,313.88x = 479,035.62 × 119,630.52
  4. Step 4: Simplify right side
    319,313.88x = 57,307,280,319.12
  5. Step 5: Solve for x
    x = 57,307,280,319.12/319,313.88
  6. Step 6: Final answer
    x = 179,470.06

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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.