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Finding the Fourth Proportional to 79,047.44, 109,072.75 and 45,056.00

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Solution

The fourth proportional to 79,047.44, 109,072.75 and 45,056.00 is: 62,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,047.44 : 109,072.75 = 45,056.00 : x
  2. Step 2: Convert to fraction form
    79,047.44/109,072.75 = 45,056.00/x
  3. Step 3: Cross multiply
    79,047.44x = 109,072.75 × 45,056.00
  4. Step 4: Simplify right side
    79,047.44x = 4,914,381,581.71
  5. Step 5: Solve for x
    x = 4,914,381,581.71/79,047.44
  6. Step 6: Final answer
    x = 62,170.02

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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.