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Finding the Fourth Proportional to 251,040.96, 346,485.60 and 155,590.08

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Solution

The fourth proportional to 251,040.96, 346,485.60 and 155,590.08 is: 214,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,040.96 : 346,485.60 = 155,590.08 : x
  2. Step 2: Convert to fraction form
    251,040.96/346,485.60 = 155,590.08/x
  3. Step 3: Cross multiply
    251,040.96x = 346,485.60 × 155,590.08
  4. Step 4: Simplify right side
    251,040.96x = 53,909,722,222.85
  5. Step 5: Solve for x
    x = 53,909,722,222.85/251,040.96
  6. Step 6: Final answer
    x = 214,744.73

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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.