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Finding the Fourth Proportional to 132,989.76, 183,513.12 and 73,369.92

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Solution

The fourth proportional to 132,989.76, 183,513.12 and 73,369.92 is: 101,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,989.76 : 183,513.12 = 73,369.92 : x
  2. Step 2: Convert to fraction form
    132,989.76/183,513.12 = 73,369.92/x
  3. Step 3: Cross multiply
    132,989.76x = 183,513.12 × 73,369.92
  4. Step 4: Simplify right side
    132,989.76x = 13,464,342,933.35
  5. Step 5: Solve for x
    x = 13,464,342,933.35/132,989.76
  6. Step 6: Final answer
    x = 101,243.46

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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.