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Finding the Fourth Proportional to 406,416.03, 609,600.60 and 122,100.49

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Solution

The fourth proportional to 406,416.03, 609,600.60 and 122,100.49 is: 183,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,416.03 : 609,600.60 = 122,100.49 : x
  2. Step 2: Convert to fraction form
    406,416.03/609,600.60 = 122,100.49/x
  3. Step 3: Cross multiply
    406,416.03x = 609,600.60 × 122,100.49
  4. Step 4: Simplify right side
    406,416.03x = 74,432,531,964.29
  5. Step 5: Solve for x
    x = 74,432,531,964.29/406,416.03
  6. Step 6: Final answer
    x = 183,143.69

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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.