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Finding the Fourth Proportional to 172,356.66, 237,851.60 and 96,905.16

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Solution

The fourth proportional to 172,356.66, 237,851.60 and 96,905.16 is: 133,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,356.66 : 237,851.60 = 96,905.16 : x
  2. Step 2: Convert to fraction form
    172,356.66/237,851.60 = 96,905.16/x
  3. Step 3: Cross multiply
    172,356.66x = 237,851.60 × 96,905.16
  4. Step 4: Simplify right side
    172,356.66x = 23,049,046,869.73
  5. Step 5: Solve for x
    x = 23,049,046,869.73/172,356.66
  6. Step 6: Final answer
    x = 133,728.79

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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.