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Finding the Fourth Proportional to 70,505.94, 97,243.20 and 43,663.35

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Solution

The fourth proportional to 70,505.94, 97,243.20 and 43,663.35 is: 60,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,505.94 : 97,243.20 = 43,663.35 : x
  2. Step 2: Convert to fraction form
    70,505.94/97,243.20 = 43,663.35/x
  3. Step 3: Cross multiply
    70,505.94x = 97,243.20 × 43,663.35
  4. Step 4: Simplify right side
    70,505.94x = 4,245,963,876.72
  5. Step 5: Solve for x
    x = 4,245,963,876.72/70,505.94
  6. Step 6: Final answer
    x = 60,221.36

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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.