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Finding the Fourth Proportional to 172,922.50, 238,633.05 and 97,473.70

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Solution

The fourth proportional to 172,922.50, 238,633.05 and 97,473.70 is: 134,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,922.50 : 238,633.05 = 97,473.70 : x
  2. Step 2: Convert to fraction form
    172,922.50/238,633.05 = 97,473.70/x
  3. Step 3: Cross multiply
    172,922.50x = 238,633.05 × 97,473.70
  4. Step 4: Simplify right side
    172,922.50x = 23,260,446,325.79
  5. Step 5: Solve for x
    x = 23,260,446,325.79/172,922.50
  6. Step 6: Final answer
    x = 134,513.71

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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.