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Finding the Fourth Proportional to 172,069.92, 237,459.60 and 96,621.12

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Solution

The fourth proportional to 172,069.92, 237,459.60 and 96,621.12 is: 133,338.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,069.92 : 237,459.60 = 96,621.12 : x
  2. Step 2: Convert to fraction form
    172,069.92/237,459.60 = 96,621.12/x
  3. Step 3: Cross multiply
    172,069.92x = 237,459.60 × 96,621.12
  4. Step 4: Simplify right side
    172,069.92x = 22,943,612,506.75
  5. Step 5: Solve for x
    x = 22,943,612,506.75/172,069.92
  6. Step 6: Final answer
    x = 133,338.89

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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.