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Finding the Fourth Proportional to 83,539.96, 115,259.95 and 51,241.39

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Solution

The fourth proportional to 83,539.96, 115,259.95 and 51,241.39 is: 70,697.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,539.96 : 115,259.95 = 51,241.39 : x
  2. Step 2: Convert to fraction form
    83,539.96/115,259.95 = 51,241.39/x
  3. Step 3: Cross multiply
    83,539.96x = 115,259.95 × 51,241.39
  4. Step 4: Simplify right side
    83,539.96x = 5,906,079,473.03
  5. Step 5: Solve for x
    x = 5,906,079,473.03/83,539.96
  6. Step 6: Final answer
    x = 70,697.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.