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Finding the Fourth Proportional to 319,696.60, 479,544.84 and 95,056.12

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Solution

The fourth proportional to 319,696.60, 479,544.84 and 95,056.12 is: 142,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,696.60 : 479,544.84 = 95,056.12 : x
  2. Step 2: Convert to fraction form
    319,696.60/479,544.84 = 95,056.12/x
  3. Step 3: Cross multiply
    319,696.60x = 479,544.84 × 95,056.12
  4. Step 4: Simplify right side
    319,696.60x = 45,583,671,856.42
  5. Step 5: Solve for x
    x = 45,583,671,856.42/319,696.60
  6. Step 6: Final answer
    x = 142,584.16

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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.