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Finding the Fourth Proportional to 186,620.60, 280,622.10 and 156,207.80

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Solution

The fourth proportional to 186,620.60, 280,622.10 and 156,207.80 is: 234,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,620.60 : 280,622.10 = 156,207.80 : x
  2. Step 2: Convert to fraction form
    186,620.60/280,622.10 = 156,207.80/x
  3. Step 3: Cross multiply
    186,620.60x = 280,622.10 × 156,207.80
  4. Step 4: Simplify right side
    186,620.60x = 43,835,360,872.38
  5. Step 5: Solve for x
    x = 43,835,360,872.38/186,620.60
  6. Step 6: Final answer
    x = 234,890.26

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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.