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Finding the Fourth Proportional to 354,317.03, 531,319.18 and 101,540.15

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Solution

The fourth proportional to 354,317.03, 531,319.18 and 101,540.15 is: 152,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,317.03 : 531,319.18 = 101,540.15 : x
  2. Step 2: Convert to fraction form
    354,317.03/531,319.18 = 101,540.15/x
  3. Step 3: Cross multiply
    354,317.03x = 531,319.18 × 101,540.15
  4. Step 4: Simplify right side
    354,317.03x = 53,950,228,727.38
  5. Step 5: Solve for x
    x = 53,950,228,727.38/354,317.03
  6. Step 6: Final answer
    x = 152,265.41

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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.