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Finding the Fourth Proportional to 125,590.70, 173,360.73 and 83,162.90

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Solution

The fourth proportional to 125,590.70, 173,360.73 and 83,162.90 is: 114,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,590.70 : 173,360.73 = 83,162.90 : x
  2. Step 2: Convert to fraction form
    125,590.70/173,360.73 = 83,162.90/x
  3. Step 3: Cross multiply
    125,590.70x = 173,360.73 × 83,162.90
  4. Step 4: Simplify right side
    125,590.70x = 14,417,181,052.92
  5. Step 5: Solve for x
    x = 14,417,181,052.92/125,590.70
  6. Step 6: Final answer
    x = 114,794.97

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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.