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Finding the Fourth Proportional to 223,459.40, 335,189.10 and 156,974.60

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Solution

The fourth proportional to 223,459.40, 335,189.10 and 156,974.60 is: 235,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,459.40 : 335,189.10 = 156,974.60 : x
  2. Step 2: Convert to fraction form
    223,459.40/335,189.10 = 156,974.60/x
  3. Step 3: Cross multiply
    223,459.40x = 335,189.10 × 156,974.60
  4. Step 4: Simplify right side
    223,459.40x = 52,616,174,896.86
  5. Step 5: Solve for x
    x = 52,616,174,896.86/223,459.40
  6. Step 6: Final answer
    x = 235,461.90

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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.