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Finding the Fourth Proportional to 156,941.60, 235,426.80 and 51,760.80

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Solution

The fourth proportional to 156,941.60, 235,426.80 and 51,760.80 is: 77,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.60 : 235,426.80 = 51,760.80 : x
  2. Step 2: Convert to fraction form
    156,941.60/235,426.80 = 51,760.80/x
  3. Step 3: Cross multiply
    156,941.60x = 235,426.80 × 51,760.80
  4. Step 4: Simplify right side
    156,941.60x = 12,185,879,509.44
  5. Step 5: Solve for x
    x = 12,185,879,509.44/156,941.60
  6. Step 6: Final answer
    x = 77,645.95

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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.