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Finding the Fourth Proportional to 125,787.96, 173,587.32 and 69,198.93

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Solution

The fourth proportional to 125,787.96, 173,587.32 and 69,198.93 is: 95,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,787.96 : 173,587.32 = 69,198.93 : x
  2. Step 2: Convert to fraction form
    125,787.96/173,587.32 = 69,198.93/x
  3. Step 3: Cross multiply
    125,787.96x = 173,587.32 × 69,198.93
  4. Step 4: Simplify right side
    125,787.96x = 12,012,056,805.57
  5. Step 5: Solve for x
    x = 12,012,056,805.57/125,787.96
  6. Step 6: Final answer
    x = 95,494.49

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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.