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Finding the Fourth Proportional to 505,178.61, 757,889.01 and 168,222.35

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Solution

The fourth proportional to 505,178.61, 757,889.01 and 168,222.35 is: 252,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,178.61 : 757,889.01 = 168,222.35 : x
  2. Step 2: Convert to fraction form
    505,178.61/757,889.01 = 168,222.35/x
  3. Step 3: Cross multiply
    505,178.61x = 757,889.01 × 168,222.35
  4. Step 4: Simplify right side
    505,178.61x = 127,493,866,511.93
  5. Step 5: Solve for x
    x = 127,493,866,511.93/505,178.61
  6. Step 6: Final answer
    x = 252,373.84

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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.