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Finding the Fourth Proportional to 159,173.32, 219,654.60 and 87,553.34

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Solution

The fourth proportional to 159,173.32, 219,654.60 and 87,553.34 is: 120,821.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,173.32 : 219,654.60 = 87,553.34 : x
  2. Step 2: Convert to fraction form
    159,173.32/219,654.60 = 87,553.34/x
  3. Step 3: Cross multiply
    159,173.32x = 219,654.60 × 87,553.34
  4. Step 4: Simplify right side
    159,173.32x = 19,231,492,340.32
  5. Step 5: Solve for x
    x = 19,231,492,340.32/159,173.32
  6. Step 6: Final answer
    x = 120,821.08

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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.