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Finding the Fourth Proportional to 79,356.51, 109,512.81 and 43,548.84

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Solution

The fourth proportional to 79,356.51, 109,512.81 and 43,548.84 is: 60,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,356.51 : 109,512.81 = 43,548.84 : x
  2. Step 2: Convert to fraction form
    79,356.51/109,512.81 = 43,548.84/x
  3. Step 3: Cross multiply
    79,356.51x = 109,512.81 × 43,548.84
  4. Step 4: Simplify right side
    79,356.51x = 4,769,155,840.64
  5. Step 5: Solve for x
    x = 4,769,155,840.64/79,356.51
  6. Step 6: Final answer
    x = 60,097.85

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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.