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Finding the Fourth Proportional to 172,996.16, 238,738.32 and 97,530.08

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Solution

The fourth proportional to 172,996.16, 238,738.32 and 97,530.08 is: 134,593.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,996.16 : 238,738.32 = 97,530.08 : x
  2. Step 2: Convert to fraction form
    172,996.16/238,738.32 = 97,530.08/x
  3. Step 3: Cross multiply
    172,996.16x = 238,738.32 × 97,530.08
  4. Step 4: Simplify right side
    172,996.16x = 23,284,167,448.67
  5. Step 5: Solve for x
    x = 23,284,167,448.67/172,996.16
  6. Step 6: Final answer
    x = 134,593.55

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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.