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Finding the Fourth Proportional to 188,676.89, 260,369.89 and 108,151.89

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Solution

The fourth proportional to 188,676.89, 260,369.89 and 108,151.89 is: 149,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,676.89 : 260,369.89 = 108,151.89 : x
  2. Step 2: Convert to fraction form
    188,676.89/260,369.89 = 108,151.89/x
  3. Step 3: Cross multiply
    188,676.89x = 260,369.89 × 108,151.89
  4. Step 4: Simplify right side
    188,676.89x = 28,159,495,702.59
  5. Step 5: Solve for x
    x = 28,159,495,702.59/188,676.89
  6. Step 6: Final answer
    x = 149,247.19

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1.5x scale

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.