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Finding the Fourth Proportional to 70,931.56, 97,892.45 and 52,995.43

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Solution

The fourth proportional to 70,931.56, 97,892.45 and 52,995.43 is: 73,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,931.56 : 97,892.45 = 52,995.43 : x
  2. Step 2: Convert to fraction form
    70,931.56/97,892.45 = 52,995.43/x
  3. Step 3: Cross multiply
    70,931.56x = 97,892.45 × 52,995.43
  4. Step 4: Simplify right side
    70,931.56x = 5,187,852,481.50
  5. Step 5: Solve for x
    x = 5,187,852,481.50/70,931.56
  6. Step 6: Final answer
    x = 73,138.85

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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.