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Finding the Fourth Proportional to 172,373.20, 258,584.10 and 54,032.20

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Solution

The fourth proportional to 172,373.20, 258,584.10 and 54,032.20 is: 81,055.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,373.20 : 258,584.10 = 54,032.20 : x
  2. Step 2: Convert to fraction form
    172,373.20/258,584.10 = 54,032.20/x
  3. Step 3: Cross multiply
    172,373.20x = 258,584.10 × 54,032.20
  4. Step 4: Simplify right side
    172,373.20x = 13,971,867,808.02
  5. Step 5: Solve for x
    x = 13,971,867,808.02/172,373.20
  6. Step 6: Final answer
    x = 81,055.92

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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.