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Finding the Fourth Proportional to 223,521.64, 308,450.47 and 126,732.00

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Solution

The fourth proportional to 223,521.64, 308,450.47 and 126,732.00 is: 174,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,521.64 : 308,450.47 = 126,732.00 : x
  2. Step 2: Convert to fraction form
    223,521.64/308,450.47 = 126,732.00/x
  3. Step 3: Cross multiply
    223,521.64x = 308,450.47 × 126,732.00
  4. Step 4: Simplify right side
    223,521.64x = 39,090,545,735.17
  5. Step 5: Solve for x
    x = 39,090,545,735.17/223,521.64
  6. Step 6: Final answer
    x = 174,884.84

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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.