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Finding the Fourth Proportional to 79,415.70, 109,595.40 and 43,608.03

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Solution

The fourth proportional to 79,415.70, 109,595.40 and 43,608.03 is: 60,180.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,415.70 : 109,595.40 = 43,608.03 : x
  2. Step 2: Convert to fraction form
    79,415.70/109,595.40 = 43,608.03/x
  3. Step 3: Cross multiply
    79,415.70x = 109,595.40 × 43,608.03
  4. Step 4: Simplify right side
    79,415.70x = 4,779,239,491.06
  5. Step 5: Solve for x
    x = 4,779,239,491.06/79,415.70
  6. Step 6: Final answer
    x = 60,180.03

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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.