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Finding the Fourth Proportional to 132,631, 183,030.84 and 73,015

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Solution

The fourth proportional to 132,631, 183,030.84 and 73,015 is: 100,760.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,631 : 183,030.84 = 73,015 : x
  2. Step 2: Convert to fraction form
    132,631/183,030.84 = 73,015/x
  3. Step 3: Cross multiply
    132,631x = 183,030.84 × 73,015
  4. Step 4: Simplify right side
    132,631x = 13,363,996,782.60
  5. Step 5: Solve for x
    x = 13,363,996,782.60/132,631
  6. Step 6: Final answer
    x = 100,760.73

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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.