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Finding the Fourth Proportional to 381,828.90, 572,597.55 and 115,500.90

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Solution

The fourth proportional to 381,828.90, 572,597.55 and 115,500.90 is: 173,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,828.90 : 572,597.55 = 115,500.90 : x
  2. Step 2: Convert to fraction form
    381,828.90/572,597.55 = 115,500.90/x
  3. Step 3: Cross multiply
    381,828.90x = 572,597.55 × 115,500.90
  4. Step 4: Simplify right side
    381,828.90x = 66,135,532,362.80
  5. Step 5: Solve for x
    x = 66,135,532,362.80/381,828.90
  6. Step 6: Final answer
    x = 173,207.25

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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.