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Finding the Fourth Proportional to 489,545.46, 734,321.43 and 134,596.98

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Solution

The fourth proportional to 489,545.46, 734,321.43 and 134,596.98 is: 201,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,545.46 : 734,321.43 = 134,596.98 : x
  2. Step 2: Convert to fraction form
    489,545.46/734,321.43 = 134,596.98/x
  3. Step 3: Cross multiply
    489,545.46x = 734,321.43 × 134,596.98
  4. Step 4: Simplify right side
    489,545.46x = 98,837,446,827.28
  5. Step 5: Solve for x
    x = 98,837,446,827.28/489,545.46
  6. Step 6: Final answer
    x = 201,896.36

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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.