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Finding the Fourth Proportional to 156,671.60, 235,037.16 and 51,520.88

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Solution

The fourth proportional to 156,671.60, 235,037.16 and 51,520.88 is: 77,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,671.60 : 235,037.16 = 51,520.88 : x
  2. Step 2: Convert to fraction form
    156,671.60/235,037.16 = 51,520.88/x
  3. Step 3: Cross multiply
    156,671.60x = 235,037.16 × 51,520.88
  4. Step 4: Simplify right side
    156,671.60x = 12,109,321,315.90
  5. Step 5: Solve for x
    x = 12,109,321,315.90/156,671.60
  6. Step 6: Final answer
    x = 77,291.11

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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.