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Finding the Fourth Proportional to 79,296.51, 109,429.34 and 43,486.79

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Solution

The fourth proportional to 79,296.51, 109,429.34 and 43,486.79 is: 60,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,296.51 : 109,429.34 = 43,486.79 : x
  2. Step 2: Convert to fraction form
    79,296.51/109,429.34 = 43,486.79/x
  3. Step 3: Cross multiply
    79,296.51x = 109,429.34 × 43,486.79
  4. Step 4: Simplify right side
    79,296.51x = 4,758,729,963.84
  5. Step 5: Solve for x
    x = 4,758,729,963.84/79,296.51
  6. Step 6: Final answer
    x = 60,011.85

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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.