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Finding the Fourth Proportional to 188,938.91, 260,735.91 and 102,898.04

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Solution

The fourth proportional to 188,938.91, 260,735.91 and 102,898.04 is: 141,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,938.91 : 260,735.91 = 102,898.04 : x
  2. Step 2: Convert to fraction form
    188,938.91/260,735.91 = 102,898.04/x
  3. Step 3: Cross multiply
    188,938.91x = 260,735.91 × 102,898.04
  4. Step 4: Simplify right side
    188,938.91x = 26,829,212,792.94
  5. Step 5: Solve for x
    x = 26,829,212,792.94/188,938.91
  6. Step 6: Final answer
    x = 141,999.41

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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.