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Finding the Fourth Proportional to 187,446.93, 258,492.43 and 171,887.78

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Solution

The fourth proportional to 187,446.93, 258,492.43 and 171,887.78 is: 237,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,446.93 : 258,492.43 = 171,887.78 : x
  2. Step 2: Convert to fraction form
    187,446.93/258,492.43 = 171,887.78/x
  3. Step 3: Cross multiply
    187,446.93x = 258,492.43 × 171,887.78
  4. Step 4: Simplify right side
    187,446.93x = 44,431,690,800.60
  5. Step 5: Solve for x
    x = 44,431,690,800.60/187,446.93
  6. Step 6: Final answer
    x = 237,036.11

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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.