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Finding the Fourth Proportional to 109,487.89, 151,093.38 and 59,186.89

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Solution

The fourth proportional to 109,487.89, 151,093.38 and 59,186.89 is: 81,677.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,487.89 : 151,093.38 = 59,186.89 : x
  2. Step 2: Convert to fraction form
    109,487.89/151,093.38 = 59,186.89/x
  3. Step 3: Cross multiply
    109,487.89x = 151,093.38 × 59,186.89
  4. Step 4: Simplify right side
    109,487.89x = 8,942,747,261.79
  5. Step 5: Solve for x
    x = 8,942,747,261.79/109,487.89
  6. Step 6: Final answer
    x = 81,677.96

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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.