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Finding the Fourth Proportional to 356,467.15, 534,701.13 and 107,149.15

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Solution

The fourth proportional to 356,467.15, 534,701.13 and 107,149.15 is: 160,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,467.15 : 534,701.13 = 107,149.15 : x
  2. Step 2: Convert to fraction form
    356,467.15/534,701.13 = 107,149.15/x
  3. Step 3: Cross multiply
    356,467.15x = 534,701.13 × 107,149.15
  4. Step 4: Simplify right side
    356,467.15x = 57,292,771,583.54
  5. Step 5: Solve for x
    x = 57,292,771,583.54/356,467.15
  6. Step 6: Final answer
    x = 160,723.85

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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.