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Finding the Fourth Proportional to 124,209, 171,451.62 and 73,906.92

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Solution

The fourth proportional to 124,209, 171,451.62 and 73,906.92 is: 102,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,209 : 171,451.62 = 73,906.92 : x
  2. Step 2: Convert to fraction form
    124,209/171,451.62 = 73,906.92/x
  3. Step 3: Cross multiply
    124,209x = 171,451.62 × 73,906.92
  4. Step 4: Simplify right side
    124,209x = 12,671,461,163.21
  5. Step 5: Solve for x
    x = 12,671,461,163.21/124,209
  6. Step 6: Final answer
    x = 102,017.25

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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.