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Finding the Fourth Proportional to 528,086.65, 792,129.98 and 173,136.55

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Solution

The fourth proportional to 528,086.65, 792,129.98 and 173,136.55 is: 259,704.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,086.65 : 792,129.98 = 173,136.55 : x
  2. Step 2: Convert to fraction form
    528,086.65/792,129.98 = 173,136.55/x
  3. Step 3: Cross multiply
    528,086.65x = 792,129.98 × 173,136.55
  4. Step 4: Simplify right side
    528,086.65x = 137,146,651,888.77
  5. Step 5: Solve for x
    x = 137,146,651,888.77/528,086.65
  6. Step 6: Final answer
    x = 259,704.83

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Similar ratio
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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.