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Finding the Fourth Proportional to 574,890.34, 862,269.90 and 154,133.50

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Solution

The fourth proportional to 574,890.34, 862,269.90 and 154,133.50 is: 231,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,890.34 : 862,269.90 = 154,133.50 : x
  2. Step 2: Convert to fraction form
    574,890.34/862,269.90 = 154,133.50/x
  3. Step 3: Cross multiply
    574,890.34x = 862,269.90 × 154,133.50
  4. Step 4: Simplify right side
    574,890.34x = 132,904,677,631.65
  5. Step 5: Solve for x
    x = 132,904,677,631.65/574,890.34
  6. Step 6: Final answer
    x = 231,182.66

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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.