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Finding the Fourth Proportional to 172,479.52, 238,021.62 and 97,028.02

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Solution

The fourth proportional to 172,479.52, 238,021.62 and 97,028.02 is: 133,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,479.52 : 238,021.62 = 97,028.02 : x
  2. Step 2: Convert to fraction form
    172,479.52/238,021.62 = 97,028.02/x
  3. Step 3: Cross multiply
    172,479.52x = 238,021.62 × 97,028.02
  4. Step 4: Simplify right side
    172,479.52x = 23,094,766,505.79
  5. Step 5: Solve for x
    x = 23,094,766,505.79/172,479.52
  6. Step 6: Final answer
    x = 133,898.60

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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.