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Finding the Fourth Proportional to 175,458.88, 263,288.64 and 74,248.96

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Solution

The fourth proportional to 175,458.88, 263,288.64 and 74,248.96 is: 111,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,458.88 : 263,288.64 = 74,248.96 : x
  2. Step 2: Convert to fraction form
    175,458.88/263,288.64 = 74,248.96/x
  3. Step 3: Cross multiply
    175,458.88x = 263,288.64 × 74,248.96
  4. Step 4: Simplify right side
    175,458.88x = 19,548,907,699.81
  5. Step 5: Solve for x
    x = 19,548,907,699.81/175,458.88
  6. Step 6: Final answer
    x = 111,415.89

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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.