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Finding the Fourth Proportional to 70,399.98, 97,151.15 and 38,133.99

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Solution

The fourth proportional to 70,399.98, 97,151.15 and 38,133.99 is: 52,624.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,399.98 : 97,151.15 = 38,133.99 : x
  2. Step 2: Convert to fraction form
    70,399.98/97,151.15 = 38,133.99/x
  3. Step 3: Cross multiply
    70,399.98x = 97,151.15 × 38,133.99
  4. Step 4: Simplify right side
    70,399.98x = 3,704,760,982.59
  5. Step 5: Solve for x
    x = 3,704,760,982.59/70,399.98
  6. Step 6: Final answer
    x = 52,624.46

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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.