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Finding the Fourth Proportional to 79,812.69, 110,141.47 and 45,823.36

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Solution

The fourth proportional to 79,812.69, 110,141.47 and 45,823.36 is: 63,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,812.69 : 110,141.47 = 45,823.36 : x
  2. Step 2: Convert to fraction form
    79,812.69/110,141.47 = 45,823.36/x
  3. Step 3: Cross multiply
    79,812.69x = 110,141.47 × 45,823.36
  4. Step 4: Simplify right side
    79,812.69x = 5,047,052,230.74
  5. Step 5: Solve for x
    x = 5,047,052,230.74/79,812.69
  6. Step 6: Final answer
    x = 63,236.21

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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.