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Finding the Fourth Proportional to 172,459.12, 237,980.72 and 96,993.04

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Solution

The fourth proportional to 172,459.12, 237,980.72 and 96,993.04 is: 133,843.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,459.12 : 237,980.72 = 96,993.04 : x
  2. Step 2: Convert to fraction form
    172,459.12/237,980.72 = 96,993.04/x
  3. Step 3: Cross multiply
    172,459.12x = 237,980.72 × 96,993.04
  4. Step 4: Simplify right side
    172,459.12x = 23,082,473,494.19
  5. Step 5: Solve for x
    x = 23,082,473,494.19/172,459.12
  6. Step 6: Final answer
    x = 133,843.16

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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.