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Finding the Fourth Proportional to 172,381.36, 258,572.06 and 54,063.04

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Solution

The fourth proportional to 172,381.36, 258,572.06 and 54,063.04 is: 81,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,381.36 : 258,572.06 = 54,063.04 : x
  2. Step 2: Convert to fraction form
    172,381.36/258,572.06 = 54,063.04/x
  3. Step 3: Cross multiply
    172,381.36x = 258,572.06 × 54,063.04
  4. Step 4: Simplify right side
    172,381.36x = 13,979,191,622.66
  5. Step 5: Solve for x
    x = 13,979,191,622.66/172,381.36
  6. Step 6: Final answer
    x = 81,094.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.