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Finding the Fourth Proportional to 156,999.60, 235,513.80 and 51,818.80

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Solution

The fourth proportional to 156,999.60, 235,513.80 and 51,818.80 is: 77,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,999.60 : 235,513.80 = 51,818.80 : x
  2. Step 2: Convert to fraction form
    156,999.60/235,513.80 = 51,818.80/x
  3. Step 3: Cross multiply
    156,999.60x = 235,513.80 × 51,818.80
  4. Step 4: Simplify right side
    156,999.60x = 12,204,042,499.44
  5. Step 5: Solve for x
    x = 12,204,042,499.44/156,999.60
  6. Step 6: Final answer
    x = 77,732.95

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1.5x scale

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.