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Finding the Fourth Proportional to 347,769.60, 521,524.80 and 123,043.20

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Solution

The fourth proportional to 347,769.60, 521,524.80 and 123,043.20 is: 184,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,769.60 : 521,524.80 = 123,043.20 : x
  2. Step 2: Convert to fraction form
    347,769.60/521,524.80 = 123,043.20/x
  3. Step 3: Cross multiply
    347,769.60x = 521,524.80 × 123,043.20
  4. Step 4: Simplify right side
    347,769.60x = 64,170,080,271.36
  5. Step 5: Solve for x
    x = 64,170,080,271.36/347,769.60
  6. Step 6: Final answer
    x = 184,518.95

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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.