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Finding the Fourth Proportional to 319,798.13, 479,653.43 and 95,193.23

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Solution

The fourth proportional to 319,798.13, 479,653.43 and 95,193.23 is: 142,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,798.13 : 479,653.43 = 95,193.23 : x
  2. Step 2: Convert to fraction form
    319,798.13/479,653.43 = 95,193.23/x
  3. Step 3: Cross multiply
    319,798.13x = 479,653.43 × 95,193.23
  4. Step 4: Simplify right side
    319,798.13x = 45,659,758,806.31
  5. Step 5: Solve for x
    x = 45,659,758,806.31/319,798.13
  6. Step 6: Final answer
    x = 142,776.82

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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.