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Finding the Fourth Proportional to 316,716.18, 475,074.27 and 80,058.86

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Solution

The fourth proportional to 316,716.18, 475,074.27 and 80,058.86 is: 120,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,716.18 : 475,074.27 = 80,058.86 : x
  2. Step 2: Convert to fraction form
    316,716.18/475,074.27 = 80,058.86/x
  3. Step 3: Cross multiply
    316,716.18x = 475,074.27 × 80,058.86
  4. Step 4: Simplify right side
    316,716.18x = 38,033,902,096.16
  5. Step 5: Solve for x
    x = 38,033,902,096.16/316,716.18
  6. Step 6: Final answer
    x = 120,088.28

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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.