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Finding the Fourth Proportional to 172,432.26, 237,954.20 and 96,980.76

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Solution

The fourth proportional to 172,432.26, 237,954.20 and 96,980.76 is: 133,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,432.26 : 237,954.20 = 96,980.76 : x
  2. Step 2: Convert to fraction form
    172,432.26/237,954.20 = 96,980.76/x
  3. Step 3: Cross multiply
    172,432.26x = 237,954.20 × 96,980.76
  4. Step 4: Simplify right side
    172,432.26x = 23,076,978,676.29
  5. Step 5: Solve for x
    x = 23,076,978,676.29/172,432.26
  6. Step 6: Final answer
    x = 133,832.14

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1.5x scale

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.