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Finding the Fourth Proportional to 223,388.80, 335,126.40 and 65,622.40

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Solution

The fourth proportional to 223,388.80, 335,126.40 and 65,622.40 is: 98,446.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,388.80 : 335,126.40 = 65,622.40 : x
  2. Step 2: Convert to fraction form
    223,388.80/335,126.40 = 65,622.40/x
  3. Step 3: Cross multiply
    223,388.80x = 335,126.40 × 65,622.40
  4. Step 4: Simplify right side
    223,388.80x = 21,991,798,671.36
  5. Step 5: Solve for x
    x = 21,991,798,671.36/223,388.80
  6. Step 6: Final answer
    x = 98,446.29

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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.