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Finding the Fourth Proportional to 125,826.32, 173,640.32 and 69,237.70

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Solution

The fourth proportional to 125,826.32, 173,640.32 and 69,237.70 is: 95,548.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,826.32 : 173,640.32 = 69,237.70 : x
  2. Step 2: Convert to fraction form
    125,826.32/173,640.32 = 69,237.70/x
  3. Step 3: Cross multiply
    125,826.32x = 173,640.32 × 69,237.70
  4. Step 4: Simplify right side
    125,826.32x = 12,022,455,169.67
  5. Step 5: Solve for x
    x = 12,022,455,169.67/125,826.32
  6. Step 6: Final answer
    x = 95,548.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.