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Finding the Fourth Proportional to 356,781.18, 534,797.15 and 120,041.67

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Solution

The fourth proportional to 356,781.18, 534,797.15 and 120,041.67 is: 179,936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,781.18 : 534,797.15 = 120,041.67 : x
  2. Step 2: Convert to fraction form
    356,781.18/534,797.15 = 120,041.67/x
  3. Step 3: Cross multiply
    356,781.18x = 534,797.15 × 120,041.67
  4. Step 4: Simplify right side
    356,781.18x = 64,197,942,397.03
  5. Step 5: Solve for x
    x = 64,197,942,397.03/356,781.18
  6. Step 6: Final answer
    x = 179,936.46

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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.