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Finding the Fourth Proportional to 169,155.66, 253,755.30 and 56,787.60

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Solution

The fourth proportional to 169,155.66, 253,755.30 and 56,787.60 is: 85,188.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,155.66 : 253,755.30 = 56,787.60 : x
  2. Step 2: Convert to fraction form
    169,155.66/253,755.30 = 56,787.60/x
  3. Step 3: Cross multiply
    169,155.66x = 253,755.30 × 56,787.60
  4. Step 4: Simplify right side
    169,155.66x = 14,410,154,474.28
  5. Step 5: Solve for x
    x = 14,410,154,474.28/169,155.66
  6. Step 6: Final answer
    x = 85,188.72

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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.