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Finding the Fourth Proportional to 223,534.40, 335,263.20 and 83,220.80

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Solution

The fourth proportional to 223,534.40, 335,263.20 and 83,220.80 is: 124,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,534.40 : 335,263.20 = 83,220.80 : x
  2. Step 2: Convert to fraction form
    223,534.40/335,263.20 = 83,220.80/x
  3. Step 3: Cross multiply
    223,534.40x = 335,263.20 × 83,220.80
  4. Step 4: Simplify right side
    223,534.40x = 27,900,871,714.56
  5. Step 5: Solve for x
    x = 27,900,871,714.56/223,534.40
  6. Step 6: Final answer
    x = 124,816.90

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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.