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Finding the Fourth Proportional to 223,343.20, 334,982.40 and 65,555.20

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Solution

The fourth proportional to 223,343.20, 334,982.40 and 65,555.20 is: 98,323.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,343.20 : 334,982.40 = 65,555.20 : x
  2. Step 2: Convert to fraction form
    223,343.20/334,982.40 = 65,555.20/x
  3. Step 3: Cross multiply
    223,343.20x = 334,982.40 × 65,555.20
  4. Step 4: Simplify right side
    223,343.20x = 21,959,838,228.48
  5. Step 5: Solve for x
    x = 21,959,838,228.48/223,343.20
  6. Step 6: Final answer
    x = 98,323.29

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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.