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Finding the Fourth Proportional to 356,324.96, 534,503.01 and 103,599.86

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Solution

The fourth proportional to 356,324.96, 534,503.01 and 103,599.86 is: 155,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,324.96 : 534,503.01 = 103,599.86 : x
  2. Step 2: Convert to fraction form
    356,324.96/534,503.01 = 103,599.86/x
  3. Step 3: Cross multiply
    356,324.96x = 534,503.01 × 103,599.86
  4. Step 4: Simplify right side
    356,324.96x = 55,374,435,173.12
  5. Step 5: Solve for x
    x = 55,374,435,173.12/356,324.96
  6. Step 6: Final answer
    x = 155,404.31

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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.