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Finding the Fourth Proportional to 91,469.66, 126,242.44 and 57,482.75

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Solution

The fourth proportional to 91,469.66, 126,242.44 and 57,482.75 is: 79,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,469.66 : 126,242.44 = 57,482.75 : x
  2. Step 2: Convert to fraction form
    91,469.66/126,242.44 = 57,482.75/x
  3. Step 3: Cross multiply
    91,469.66x = 126,242.44 × 57,482.75
  4. Step 4: Simplify right side
    91,469.66x = 7,256,762,789.81
  5. Step 5: Solve for x
    x = 7,256,762,789.81/91,469.66
  6. Step 6: Final answer
    x = 79,335.19

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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.