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Finding the Fourth Proportional to 70,384.81, 97,132.46 and 38,553.74

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Solution

The fourth proportional to 70,384.81, 97,132.46 and 38,553.74 is: 53,204.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,384.81 : 97,132.46 = 38,553.74 : x
  2. Step 2: Convert to fraction form
    70,384.81/97,132.46 = 38,553.74/x
  3. Step 3: Cross multiply
    70,384.81x = 97,132.46 × 38,553.74
  4. Step 4: Simplify right side
    70,384.81x = 3,744,819,608.40
  5. Step 5: Solve for x
    x = 3,744,819,608.40/70,384.81
  6. Step 6: Final answer
    x = 53,204.94

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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.