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Finding the Fourth Proportional to 135,001.88, 186,303.96 and 74,573.96

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Solution

The fourth proportional to 135,001.88, 186,303.96 and 74,573.96 is: 102,912.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,001.88 : 186,303.96 = 74,573.96 : x
  2. Step 2: Convert to fraction form
    135,001.88/186,303.96 = 74,573.96/x
  3. Step 3: Cross multiply
    135,001.88x = 186,303.96 × 74,573.96
  4. Step 4: Simplify right side
    135,001.88x = 13,893,424,060.88
  5. Step 5: Solve for x
    x = 13,893,424,060.88/135,001.88
  6. Step 6: Final answer
    x = 102,912.82

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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.