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Finding the Fourth Proportional to 279,588.65, 385,779.33 and 177,630.71

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Solution

The fourth proportional to 279,588.65, 385,779.33 and 177,630.71 is: 245,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,588.65 : 385,779.33 = 177,630.71 : x
  2. Step 2: Convert to fraction form
    279,588.65/385,779.33 = 177,630.71/x
  3. Step 3: Cross multiply
    279,588.65x = 385,779.33 × 177,630.71
  4. Step 4: Simplify right side
    279,588.65x = 68,526,257,255.67
  5. Step 5: Solve for x
    x = 68,526,257,255.67/279,588.65
  6. Step 6: Final answer
    x = 245,096.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.