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Finding the Fourth Proportional to 358,529.80, 537,794.70 and 148,318.60

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Solution

The fourth proportional to 358,529.80, 537,794.70 and 148,318.60 is: 222,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,529.80 : 537,794.70 = 148,318.60 : x
  2. Step 2: Convert to fraction form
    358,529.80/537,794.70 = 148,318.60/x
  3. Step 3: Cross multiply
    358,529.80x = 537,794.70 × 148,318.60
  4. Step 4: Simplify right side
    358,529.80x = 79,764,956,991.42
  5. Step 5: Solve for x
    x = 79,764,956,991.42/358,529.80
  6. Step 6: Final answer
    x = 222,477.90

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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.