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Finding the Fourth Proportional to 292,671.70, 439,007.54 and 82,309.62

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Solution

The fourth proportional to 292,671.70, 439,007.54 and 82,309.62 is: 123,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,671.70 : 439,007.54 = 82,309.62 : x
  2. Step 2: Convert to fraction form
    292,671.70/439,007.54 = 82,309.62/x
  3. Step 3: Cross multiply
    292,671.70x = 439,007.54 × 82,309.62
  4. Step 4: Simplify right side
    292,671.70x = 36,134,543,794.53
  5. Step 5: Solve for x
    x = 36,134,543,794.53/292,671.70
  6. Step 6: Final answer
    x = 123,464.43

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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.