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Finding the Fourth Proportional to 172,981.84, 238,716.36 and 101,363.92

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Solution

The fourth proportional to 172,981.84, 238,716.36 and 101,363.92 is: 139,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,981.84 : 238,716.36 = 101,363.92 : x
  2. Step 2: Convert to fraction form
    172,981.84/238,716.36 = 101,363.92/x
  3. Step 3: Cross multiply
    172,981.84x = 238,716.36 × 101,363.92
  4. Step 4: Simplify right side
    172,981.84x = 24,197,226,017.73
  5. Step 5: Solve for x
    x = 24,197,226,017.73/172,981.84
  6. Step 6: Final answer
    x = 139,883.04

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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.