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Finding the Fourth Proportional to 187,060.89, 280,632.80 and 53,930.76

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Solution

The fourth proportional to 187,060.89, 280,632.80 and 53,930.76 is: 80,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,060.89 : 280,632.80 = 53,930.76 : x
  2. Step 2: Convert to fraction form
    187,060.89/280,632.80 = 53,930.76/x
  3. Step 3: Cross multiply
    187,060.89x = 280,632.80 × 53,930.76
  4. Step 4: Simplify right side
    187,060.89x = 15,134,740,845.94
  5. Step 5: Solve for x
    x = 15,134,740,845.94/187,060.89
  6. Step 6: Final answer
    x = 80,908.10

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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.