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Finding the Fourth Proportional to 319,688.36, 479,611.46 and 95,047.82

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Solution

The fourth proportional to 319,688.36, 479,611.46 and 95,047.82 is: 142,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,688.36 : 479,611.46 = 95,047.82 : x
  2. Step 2: Convert to fraction form
    319,688.36/479,611.46 = 95,047.82/x
  3. Step 3: Cross multiply
    319,688.36x = 479,611.46 × 95,047.82
  4. Step 4: Simplify right side
    319,688.36x = 45,586,020,846.72
  5. Step 5: Solve for x
    x = 45,586,020,846.72/319,688.36
  6. Step 6: Final answer
    x = 142,595.19

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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.