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Finding the Fourth Proportional to 83,605.43, 125,334.31 and 63,971.63

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Solution

The fourth proportional to 83,605.43, 125,334.31 and 63,971.63 is: 95,900.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,605.43 : 125,334.31 = 63,971.63 : x
  2. Step 2: Convert to fraction form
    83,605.43/125,334.31 = 63,971.63/x
  3. Step 3: Cross multiply
    83,605.43x = 125,334.31 × 63,971.63
  4. Step 4: Simplify right side
    83,605.43x = 8,017,840,259.03
  5. Step 5: Solve for x
    x = 8,017,840,259.03/83,605.43
  6. Step 6: Final answer
    x = 95,900.96

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1.5x scale

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.