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Finding the Fourth Proportional to 306,419.90, 460,060.43 and 156,767.54

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Solution

The fourth proportional to 306,419.90, 460,060.43 and 156,767.54 is: 235,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,419.90 : 460,060.43 = 156,767.54 : x
  2. Step 2: Convert to fraction form
    306,419.90/460,060.43 = 156,767.54/x
  3. Step 3: Cross multiply
    306,419.90x = 460,060.43 × 156,767.54
  4. Step 4: Simplify right side
    306,419.90x = 72,122,538,778.30
  5. Step 5: Solve for x
    x = 72,122,538,778.30/306,419.90
  6. Step 6: Final answer
    x = 235,371.59

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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.