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Finding the Fourth Proportional to 273,902.60, 410,925.90 and 86,913.80

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Solution

The fourth proportional to 273,902.60, 410,925.90 and 86,913.80 is: 130,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,902.60 : 410,925.90 = 86,913.80 : x
  2. Step 2: Convert to fraction form
    273,902.60/410,925.90 = 86,913.80/x
  3. Step 3: Cross multiply
    273,902.60x = 410,925.90 × 86,913.80
  4. Step 4: Simplify right side
    273,902.60x = 35,715,131,487.42
  5. Step 5: Solve for x
    x = 35,715,131,487.42/273,902.60
  6. Step 6: Final answer
    x = 130,393.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.