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Finding the Fourth Proportional to 356,243.78, 534,400.76 and 103,526.48

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Solution

The fourth proportional to 356,243.78, 534,400.76 and 103,526.48 is: 155,299.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,243.78 : 534,400.76 = 103,526.48 : x
  2. Step 2: Convert to fraction form
    356,243.78/534,400.76 = 103,526.48/x
  3. Step 3: Cross multiply
    356,243.78x = 534,400.76 × 103,526.48
  4. Step 4: Simplify right side
    356,243.78x = 55,324,629,592.12
  5. Step 5: Solve for x
    x = 55,324,629,592.12/356,243.78
  6. Step 6: Final answer
    x = 155,299.92

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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.