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Finding the Fourth Proportional to 124,206, 171,447.48 and 73,903.92

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Solution

The fourth proportional to 124,206, 171,447.48 and 73,903.92 is: 102,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,206 : 171,447.48 = 73,903.92 : x
  2. Step 2: Convert to fraction form
    124,206/171,447.48 = 73,903.92/x
  3. Step 3: Cross multiply
    124,206x = 171,447.48 × 73,903.92
  4. Step 4: Simplify right side
    124,206x = 12,670,640,846.12
  5. Step 5: Solve for x
    x = 12,670,640,846.12/124,206
  6. Step 6: Final answer
    x = 102,013.11

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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.