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Finding the Fourth Proportional to 223,463.40, 335,203.20 and 65,707.80

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Solution

The fourth proportional to 223,463.40, 335,203.20 and 65,707.80 is: 98,564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,463.40 : 335,203.20 = 65,707.80 : x
  2. Step 2: Convert to fraction form
    223,463.40/335,203.20 = 65,707.80/x
  3. Step 3: Cross multiply
    223,463.40x = 335,203.20 × 65,707.80
  4. Step 4: Simplify right side
    223,463.40x = 22,025,464,824.96
  5. Step 5: Solve for x
    x = 22,025,464,824.96/223,463.40
  6. Step 6: Final answer
    x = 98,564.08

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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.