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Finding the Fourth Proportional to 186,670.60, 280,697.10 and 156,257.80

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Solution

The fourth proportional to 186,670.60, 280,697.10 and 156,257.80 is: 234,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,670.60 : 280,697.10 = 156,257.80 : x
  2. Step 2: Convert to fraction form
    186,670.60/280,697.10 = 156,257.80/x
  3. Step 3: Cross multiply
    186,670.60x = 280,697.10 × 156,257.80
  4. Step 4: Simplify right side
    186,670.60x = 43,861,111,312.38
  5. Step 5: Solve for x
    x = 43,861,111,312.38/186,670.60
  6. Step 6: Final answer
    x = 234,965.29

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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.