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Finding the Fourth Proportional to 253,130.89, 379,579.47 and 93,166.65

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Solution

The fourth proportional to 253,130.89, 379,579.47 and 93,166.65 is: 139,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,130.89 : 379,579.47 = 93,166.65 : x
  2. Step 2: Convert to fraction form
    253,130.89/379,579.47 = 93,166.65/x
  3. Step 3: Cross multiply
    253,130.89x = 379,579.47 × 93,166.65
  4. Step 4: Simplify right side
    253,130.89x = 35,364,147,628.68
  5. Step 5: Solve for x
    x = 35,364,147,628.68/253,130.89
  6. Step 6: Final answer
    x = 139,706.96

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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.