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Finding the Fourth Proportional to 70,769.63, 97,663.05 and 38,504.63

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Solution

The fourth proportional to 70,769.63, 97,663.05 and 38,504.63 is: 53,136.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,769.63 : 97,663.05 = 38,504.63 : x
  2. Step 2: Convert to fraction form
    70,769.63/97,663.05 = 38,504.63/x
  3. Step 3: Cross multiply
    70,769.63x = 97,663.05 × 38,504.63
  4. Step 4: Simplify right side
    70,769.63x = 3,760,479,349.61
  5. Step 5: Solve for x
    x = 3,760,479,349.61/70,769.63
  6. Step 6: Final answer
    x = 53,136.91

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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.