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Finding the Fourth Proportional to 70,047.69, 96,771.21 and 45,906.04

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Solution

The fourth proportional to 70,047.69, 96,771.21 and 45,906.04 is: 63,419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,047.69 : 96,771.21 = 45,906.04 : x
  2. Step 2: Convert to fraction form
    70,047.69/96,771.21 = 45,906.04/x
  3. Step 3: Cross multiply
    70,047.69x = 96,771.21 × 45,906.04
  4. Step 4: Simplify right side
    70,047.69x = 4,442,382,985.92
  5. Step 5: Solve for x
    x = 4,442,382,985.92/70,047.69
  6. Step 6: Final answer
    x = 63,419.41

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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.