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Finding the Fourth Proportional to 95,563.20, 143,301.60 and 42,945.60

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Solution

The fourth proportional to 95,563.20, 143,301.60 and 42,945.60 is: 64,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,563.20 : 143,301.60 = 42,945.60 : x
  2. Step 2: Convert to fraction form
    95,563.20/143,301.60 = 42,945.60/x
  3. Step 3: Cross multiply
    95,563.20x = 143,301.60 × 42,945.60
  4. Step 4: Simplify right side
    95,563.20x = 6,154,173,192.96
  5. Step 5: Solve for x
    x = 6,154,173,192.96/95,563.20
  6. Step 6: Final answer
    x = 64,398.99

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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.