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Finding the Fourth Proportional to 125,793.70, 173,504.59 and 72,059.11

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Solution

The fourth proportional to 125,793.70, 173,504.59 and 72,059.11 is: 99,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,793.70 : 173,504.59 = 72,059.11 : x
  2. Step 2: Convert to fraction form
    125,793.70/173,504.59 = 72,059.11/x
  3. Step 3: Cross multiply
    125,793.70x = 173,504.59 × 72,059.11
  4. Step 4: Simplify right side
    125,793.70x = 12,502,586,336.31
  5. Step 5: Solve for x
    x = 12,502,586,336.31/125,793.70
  6. Step 6: Final answer
    x = 99,389.61

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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.