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Finding the Fourth Proportional to 223,397.19, 335,100.65 and 65,625.80

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Solution

The fourth proportional to 223,397.19, 335,100.65 and 65,625.80 is: 98,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,397.19 : 335,100.65 = 65,625.80 : x
  2. Step 2: Convert to fraction form
    223,397.19/335,100.65 = 65,625.80/x
  3. Step 3: Cross multiply
    223,397.19x = 335,100.65 × 65,625.80
  4. Step 4: Simplify right side
    223,397.19x = 21,991,246,233.14
  5. Step 5: Solve for x
    x = 21,991,246,233.14/223,397.19
  6. Step 6: Final answer
    x = 98,440.12

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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.