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Finding the Fourth Proportional to 172,490.76, 238,035.43 and 96,008.64

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Solution

The fourth proportional to 172,490.76, 238,035.43 and 96,008.64 is: 132,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,490.76 : 238,035.43 = 96,008.64 : x
  2. Step 2: Convert to fraction form
    172,490.76/238,035.43 = 96,008.64/x
  3. Step 3: Cross multiply
    172,490.76x = 238,035.43 × 96,008.64
  4. Step 4: Simplify right side
    172,490.76x = 22,853,457,133.49
  5. Step 5: Solve for x
    x = 22,853,457,133.49/172,490.76
  6. Step 6: Final answer
    x = 132,490.91

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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.