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Finding the Fourth Proportional to 363,515.22, 545,384.12 and 186,147.81

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Solution

The fourth proportional to 363,515.22, 545,384.12 and 186,147.81 is: 279,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,515.22 : 545,384.12 = 186,147.81 : x
  2. Step 2: Convert to fraction form
    363,515.22/545,384.12 = 186,147.81/x
  3. Step 3: Cross multiply
    363,515.22x = 545,384.12 × 186,147.81
  4. Step 4: Simplify right side
    363,515.22x = 101,522,058,616.04
  5. Step 5: Solve for x
    x = 101,522,058,616.04/363,515.22
  6. Step 6: Final answer
    x = 279,278.70

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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.