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Finding the Fourth Proportional to 187,635.70, 258,929.49 and 102,751.30

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Solution

The fourth proportional to 187,635.70, 258,929.49 and 102,751.30 is: 141,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,635.70 : 258,929.49 = 102,751.30 : x
  2. Step 2: Convert to fraction form
    187,635.70/258,929.49 = 102,751.30/x
  3. Step 3: Cross multiply
    187,635.70x = 258,929.49 × 102,751.30
  4. Step 4: Simplify right side
    187,635.70x = 26,605,341,705.84
  5. Step 5: Solve for x
    x = 26,605,341,705.84/187,635.70
  6. Step 6: Final answer
    x = 141,792.54

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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.