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Finding the Fourth Proportional to 186,781.84, 280,208.76 and 60,453.44

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Solution

The fourth proportional to 186,781.84, 280,208.76 and 60,453.44 is: 90,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,781.84 : 280,208.76 = 60,453.44 : x
  2. Step 2: Convert to fraction form
    186,781.84/280,208.76 = 60,453.44/x
  3. Step 3: Cross multiply
    186,781.84x = 280,208.76 × 60,453.44
  4. Step 4: Simplify right side
    186,781.84x = 16,939,583,460.13
  5. Step 5: Solve for x
    x = 16,939,583,460.13/186,781.84
  6. Step 6: Final answer
    x = 90,691.81

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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.