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Finding the Fourth Proportional to 132,907.70, 183,408.56 and 75,553.28

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Solution

The fourth proportional to 132,907.70, 183,408.56 and 75,553.28 is: 104,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,907.70 : 183,408.56 = 75,553.28 : x
  2. Step 2: Convert to fraction form
    132,907.70/183,408.56 = 75,553.28/x
  3. Step 3: Cross multiply
    132,907.70x = 183,408.56 × 75,553.28
  4. Step 4: Simplify right side
    132,907.70x = 13,857,118,368.83
  5. Step 5: Solve for x
    x = 13,857,118,368.83/132,907.70
  6. Step 6: Final answer
    x = 104,261.22

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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.