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Finding the Fourth Proportional to 155,590.26, 214,676.64 and 87,594

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Solution

The fourth proportional to 155,590.26, 214,676.64 and 87,594 is: 120,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,590.26 : 214,676.64 = 87,594 : x
  2. Step 2: Convert to fraction form
    155,590.26/214,676.64 = 87,594/x
  3. Step 3: Cross multiply
    155,590.26x = 214,676.64 × 87,594
  4. Step 4: Simplify right side
    155,590.26x = 18,804,385,604.16
  5. Step 5: Solve for x
    x = 18,804,385,604.16/155,590.26
  6. Step 6: Final answer
    x = 120,858.37

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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.