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Finding the Fourth Proportional to 79,507.35, 109,817.51 and 59,453.45

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Solution

The fourth proportional to 79,507.35, 109,817.51 and 59,453.45 is: 82,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507.35 : 109,817.51 = 59,453.45 : x
  2. Step 2: Convert to fraction form
    79,507.35/109,817.51 = 59,453.45/x
  3. Step 3: Cross multiply
    79,507.35x = 109,817.51 × 59,453.45
  4. Step 4: Simplify right side
    79,507.35x = 6,529,029,839.91
  5. Step 5: Solve for x
    x = 6,529,029,839.91/79,507.35
  6. Step 6: Final answer
    x = 82,118.57

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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.