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Finding the Fourth Proportional to 405,152.08, 559,080.80 and 223,861.96

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Solution

The fourth proportional to 405,152.08, 559,080.80 and 223,861.96 is: 308,913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,152.08 : 559,080.80 = 223,861.96 : x
  2. Step 2: Convert to fraction form
    405,152.08/559,080.80 = 223,861.96/x
  3. Step 3: Cross multiply
    405,152.08x = 559,080.80 × 223,861.96
  4. Step 4: Simplify right side
    405,152.08x = 125,156,923,686.37
  5. Step 5: Solve for x
    x = 125,156,923,686.37/405,152.08
  6. Step 6: Final answer
    x = 308,913.44

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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.