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Finding the Fourth Proportional to 125,299.35, 172,913.04 and 68,711.94

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Solution

The fourth proportional to 125,299.35, 172,913.04 and 68,711.94 is: 94,822.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,299.35 : 172,913.04 = 68,711.94 : x
  2. Step 2: Convert to fraction form
    125,299.35/172,913.04 = 68,711.94/x
  3. Step 3: Cross multiply
    125,299.35x = 172,913.04 × 68,711.94
  4. Step 4: Simplify right side
    125,299.35x = 11,881,190,429.70
  5. Step 5: Solve for x
    x = 11,881,190,429.70/125,299.35
  6. Step 6: Final answer
    x = 94,822.44

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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.