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Finding the Fourth Proportional to 79,364.51, 109,526.16 and 43,555.79

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Solution

The fourth proportional to 79,364.51, 109,526.16 and 43,555.79 is: 60,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,364.51 : 109,526.16 = 43,555.79 : x
  2. Step 2: Convert to fraction form
    79,364.51/109,526.16 = 43,555.79/x
  3. Step 3: Cross multiply
    79,364.51x = 109,526.16 × 43,555.79
  4. Step 4: Simplify right side
    79,364.51x = 4,770,497,876.84
  5. Step 5: Solve for x
    x = 4,770,497,876.84/79,364.51
  6. Step 6: Final answer
    x = 60,108.71

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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.