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Finding the Fourth Proportional to 318,152.61, 439,051.73 and 174,921.73

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Solution

The fourth proportional to 318,152.61, 439,051.73 and 174,921.73 is: 241,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,152.61 : 439,051.73 = 174,921.73 : x
  2. Step 2: Convert to fraction form
    318,152.61/439,051.73 = 174,921.73/x
  3. Step 3: Cross multiply
    318,152.61x = 439,051.73 × 174,921.73
  4. Step 4: Simplify right side
    318,152.61x = 76,799,686,198.85
  5. Step 5: Solve for x
    x = 76,799,686,198.85/318,152.61
  6. Step 6: Final answer
    x = 241,392.60

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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.