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Finding the Fourth Proportional to 70,672.68, 97,495.79 and 43,424.03

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Solution

The fourth proportional to 70,672.68, 97,495.79 and 43,424.03 is: 59,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,672.68 : 97,495.79 = 43,424.03 : x
  2. Step 2: Convert to fraction form
    70,672.68/97,495.79 = 43,424.03/x
  3. Step 3: Cross multiply
    70,672.68x = 97,495.79 × 43,424.03
  4. Step 4: Simplify right side
    70,672.68x = 4,233,660,136.45
  5. Step 5: Solve for x
    x = 4,233,660,136.45/70,672.68
  6. Step 6: Final answer
    x = 59,905.19

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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.