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Finding the Fourth Proportional to 227,030.65, 340,545.98 and 69,238.60

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Solution

The fourth proportional to 227,030.65, 340,545.98 and 69,238.60 is: 103,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,030.65 : 340,545.98 = 69,238.60 : x
  2. Step 2: Convert to fraction form
    227,030.65/340,545.98 = 69,238.60/x
  3. Step 3: Cross multiply
    227,030.65x = 340,545.98 × 69,238.60
  4. Step 4: Simplify right side
    227,030.65x = 23,578,926,890.83
  5. Step 5: Solve for x
    x = 23,578,926,890.83/227,030.65
  6. Step 6: Final answer
    x = 103,857.90

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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.