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Finding the Fourth Proportional to 358,737.30, 537,069.15 and 218,769.30

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Solution

The fourth proportional to 358,737.30, 537,069.15 and 218,769.30 is: 327,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,737.30 : 537,069.15 = 218,769.30 : x
  2. Step 2: Convert to fraction form
    358,737.30/537,069.15 = 218,769.30/x
  3. Step 3: Cross multiply
    358,737.30x = 537,069.15 × 218,769.30
  4. Step 4: Simplify right side
    358,737.30x = 117,494,241,997.10
  5. Step 5: Solve for x
    x = 117,494,241,997.10/358,737.30
  6. Step 6: Final answer
    x = 327,521.68

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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.