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Finding the Fourth Proportional to 223,523.10, 308,438.55 and 128,033.82

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Solution

The fourth proportional to 223,523.10, 308,438.55 and 128,033.82 is: 176,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,523.10 : 308,438.55 = 128,033.82 : x
  2. Step 2: Convert to fraction form
    223,523.10/308,438.55 = 128,033.82/x
  3. Step 3: Cross multiply
    223,523.10x = 308,438.55 × 128,033.82
  4. Step 4: Simplify right side
    223,523.10x = 39,490,565,791.76
  5. Step 5: Solve for x
    x = 39,490,565,791.76/223,523.10
  6. Step 6: Final answer
    x = 176,673.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.