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Finding the Fourth Proportional to 255,994.85, 353,270.43 and 141,274.55

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Solution

The fourth proportional to 255,994.85, 353,270.43 and 141,274.55 is: 194,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,994.85 : 353,270.43 = 141,274.55 : x
  2. Step 2: Convert to fraction form
    255,994.85/353,270.43 = 141,274.55/x
  3. Step 3: Cross multiply
    255,994.85x = 353,270.43 × 141,274.55
  4. Step 4: Simplify right side
    255,994.85x = 49,908,121,909.73
  5. Step 5: Solve for x
    x = 49,908,121,909.73/255,994.85
  6. Step 6: Final answer
    x = 194,957.52

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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.