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Finding the Fourth Proportional to 223,637.70, 335,445.60 and 83,385.36

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Solution

The fourth proportional to 223,637.70, 335,445.60 and 83,385.36 is: 125,073.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,637.70 : 335,445.60 = 83,385.36 : x
  2. Step 2: Convert to fraction form
    223,637.70/335,445.60 = 83,385.36/x
  3. Step 3: Cross multiply
    223,637.70x = 335,445.60 × 83,385.36
  4. Step 4: Simplify right side
    223,637.70x = 27,971,252,116.42
  5. Step 5: Solve for x
    x = 27,971,252,116.42/223,637.70
  6. Step 6: Final answer
    x = 125,073.96

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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.