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Finding the Fourth Proportional to 186,157.41, 280,478.19 and 168,407.86

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Solution

The fourth proportional to 186,157.41, 280,478.19 and 168,407.86 is: 253,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,157.41 : 280,478.19 = 168,407.86 : x
  2. Step 2: Convert to fraction form
    186,157.41/280,478.19 = 168,407.86/x
  3. Step 3: Cross multiply
    186,157.41x = 280,478.19 × 168,407.86
  4. Step 4: Simplify right side
    186,157.41x = 47,234,731,754.57
  5. Step 5: Solve for x
    x = 47,234,731,754.57/186,157.41
  6. Step 6: Final answer
    x = 253,735.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.