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Finding the Fourth Proportional to 155,561.04, 214,675.11 and 88,493.04

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Solution

The fourth proportional to 155,561.04, 214,675.11 and 88,493.04 is: 122,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,561.04 : 214,675.11 = 88,493.04 : x
  2. Step 2: Convert to fraction form
    155,561.04/214,675.11 = 88,493.04/x
  3. Step 3: Cross multiply
    155,561.04x = 214,675.11 × 88,493.04
  4. Step 4: Simplify right side
    155,561.04x = 18,997,253,096.23
  5. Step 5: Solve for x
    x = 18,997,253,096.23/155,561.04
  6. Step 6: Final answer
    x = 122,120.89

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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.