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Finding the Fourth Proportional to 79,165.55, 109,250.57 and 43,357.88

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Solution

The fourth proportional to 79,165.55, 109,250.57 and 43,357.88 is: 59,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,165.55 : 109,250.57 = 43,357.88 : x
  2. Step 2: Convert to fraction form
    79,165.55/109,250.57 = 43,357.88/x
  3. Step 3: Cross multiply
    79,165.55x = 109,250.57 × 43,357.88
  4. Step 4: Simplify right side
    79,165.55x = 4,736,873,485.51
  5. Step 5: Solve for x
    x = 4,736,873,485.51/79,165.55
  6. Step 6: Final answer
    x = 59,835.03

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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.