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Finding the Fourth Proportional to 356,715.83, 535,156.10 and 120,052.73

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Solution

The fourth proportional to 356,715.83, 535,156.10 and 120,052.73 is: 180,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,715.83 : 535,156.10 = 120,052.73 : x
  2. Step 2: Convert to fraction form
    356,715.83/535,156.10 = 120,052.73/x
  3. Step 3: Cross multiply
    356,715.83x = 535,156.10 × 120,052.73
  4. Step 4: Simplify right side
    356,715.83x = 64,246,951,968.98
  5. Step 5: Solve for x
    x = 64,246,951,968.98/356,715.83
  6. Step 6: Final answer
    x = 180,106.81

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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.