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Finding the Fourth Proportional to 229,331.40, 343,997.10 and 159,347.40

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Solution

The fourth proportional to 229,331.40, 343,997.10 and 159,347.40 is: 239,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,331.40 : 343,997.10 = 159,347.40 : x
  2. Step 2: Convert to fraction form
    229,331.40/343,997.10 = 159,347.40/x
  3. Step 3: Cross multiply
    229,331.40x = 343,997.10 × 159,347.40
  4. Step 4: Simplify right side
    229,331.40x = 54,815,043,492.54
  5. Step 5: Solve for x
    x = 54,815,043,492.54/229,331.40
  6. Step 6: Final answer
    x = 239,021.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.