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Finding the Fourth Proportional to 172,481.40, 238,018.50 and 97,015.32

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Solution

The fourth proportional to 172,481.40, 238,018.50 and 97,015.32 is: 133,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,481.40 : 238,018.50 = 97,015.32 : x
  2. Step 2: Convert to fraction form
    172,481.40/238,018.50 = 97,015.32/x
  3. Step 3: Cross multiply
    172,481.40x = 238,018.50 × 97,015.32
  4. Step 4: Simplify right side
    172,481.40x = 23,091,440,943.42
  5. Step 5: Solve for x
    x = 23,091,440,943.42/172,481.40
  6. Step 6: Final answer
    x = 133,877.86

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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.