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Finding the Fourth Proportional to 356,658.56, 535,039.68 and 190,355.84

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Solution

The fourth proportional to 356,658.56, 535,039.68 and 190,355.84 is: 285,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,658.56 : 535,039.68 = 190,355.84 : x
  2. Step 2: Convert to fraction form
    356,658.56/535,039.68 = 190,355.84/x
  3. Step 3: Cross multiply
    356,658.56x = 535,039.68 × 190,355.84
  4. Step 4: Simplify right side
    356,658.56x = 101,847,927,719.73
  5. Step 5: Solve for x
    x = 101,847,927,719.73/356,658.56
  6. Step 6: Final answer
    x = 285,561.43

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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.