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Finding the Fourth Proportional to 187,236, 258,385.68 and 102,353.67

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Solution

The fourth proportional to 187,236, 258,385.68 and 102,353.67 is: 141,248.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,236 : 258,385.68 = 102,353.67 : x
  2. Step 2: Convert to fraction form
    187,236/258,385.68 = 102,353.67/x
  3. Step 3: Cross multiply
    187,236x = 258,385.68 × 102,353.67
  4. Step 4: Simplify right side
    187,236x = 26,446,722,623.45
  5. Step 5: Solve for x
    x = 26,446,722,623.45/187,236
  6. Step 6: Final answer
    x = 141,248.06

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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.