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Finding the Fourth Proportional to 245,013.61, 367,545.84 and 67,520.65

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Solution

The fourth proportional to 245,013.61, 367,545.84 and 67,520.65 is: 101,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,013.61 : 367,545.84 = 67,520.65 : x
  2. Step 2: Convert to fraction form
    245,013.61/367,545.84 = 67,520.65/x
  3. Step 3: Cross multiply
    245,013.61x = 367,545.84 × 67,520.65
  4. Step 4: Simplify right side
    245,013.61x = 24,816,934,021.60
  5. Step 5: Solve for x
    x = 24,816,934,021.60/245,013.61
  6. Step 6: Final answer
    x = 101,287.98

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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.