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Finding the Fourth Proportional to 609,142.86, 913,675.38 and 188,383.50

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Solution

The fourth proportional to 609,142.86, 913,675.38 and 188,383.50 is: 282,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,142.86 : 913,675.38 = 188,383.50 : x
  2. Step 2: Convert to fraction form
    609,142.86/913,675.38 = 188,383.50/x
  3. Step 3: Cross multiply
    609,142.86x = 913,675.38 × 188,383.50
  4. Step 4: Simplify right side
    609,142.86x = 172,121,365,948.23
  5. Step 5: Solve for x
    x = 172,121,365,948.23/609,142.86
  6. Step 6: Final answer
    x = 282,563.22

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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.