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Finding the Fourth Proportional to 411,492.80, 617,176.83 and 111,996.72

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Solution

The fourth proportional to 411,492.80, 617,176.83 and 111,996.72 is: 167,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,492.80 : 617,176.83 = 111,996.72 : x
  2. Step 2: Convert to fraction form
    411,492.80/617,176.83 = 111,996.72/x
  3. Step 3: Cross multiply
    411,492.80x = 617,176.83 × 111,996.72
  4. Step 4: Simplify right side
    411,492.80x = 69,121,780,620.00
  5. Step 5: Solve for x
    x = 69,121,780,620.00/411,492.80
  6. Step 6: Final answer
    x = 167,978.10

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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.