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Finding the Fourth Proportional to 316,874.88, 475,327.44 and 80,219.52

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Solution

The fourth proportional to 316,874.88, 475,327.44 and 80,219.52 is: 120,333.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,874.88 : 475,327.44 = 80,219.52 : x
  2. Step 2: Convert to fraction form
    316,874.88/475,327.44 = 80,219.52/x
  3. Step 3: Cross multiply
    316,874.88x = 475,327.44 × 80,219.52
  4. Step 4: Simplify right side
    316,874.88x = 38,130,539,079.63
  5. Step 5: Solve for x
    x = 38,130,539,079.63/316,874.88
  6. Step 6: Final answer
    x = 120,333.11

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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.