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Finding the Fourth Proportional to 186,636, 279,982.20 and 60,234

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Solution

The fourth proportional to 186,636, 279,982.20 and 60,234 is: 90,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,636 : 279,982.20 = 60,234 : x
  2. Step 2: Convert to fraction form
    186,636/279,982.20 = 60,234/x
  3. Step 3: Cross multiply
    186,636x = 279,982.20 × 60,234
  4. Step 4: Simplify right side
    186,636x = 16,864,447,834.80
  5. Step 5: Solve for x
    x = 16,864,447,834.80/186,636
  6. Step 6: Final answer
    x = 90,360.10

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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.