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Finding the Fourth Proportional to 123,913.36, 171,025.32 and 73,602.64

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Solution

The fourth proportional to 123,913.36, 171,025.32 and 73,602.64 is: 101,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,913.36 : 171,025.32 = 73,602.64 : x
  2. Step 2: Convert to fraction form
    123,913.36/171,025.32 = 73,602.64/x
  3. Step 3: Cross multiply
    123,913.36x = 171,025.32 × 73,602.64
  4. Step 4: Simplify right side
    123,913.36x = 12,587,915,058.84
  5. Step 5: Solve for x
    x = 12,587,915,058.84/123,913.36
  6. Step 6: Final answer
    x = 101,586.42

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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.