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Finding the Fourth Proportional to 70,912.18, 97,883.87 and 63,345.37

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Solution

The fourth proportional to 70,912.18, 97,883.87 and 63,345.37 is: 87,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,912.18 : 97,883.87 = 63,345.37 : x
  2. Step 2: Convert to fraction form
    70,912.18/97,883.87 = 63,345.37/x
  3. Step 3: Cross multiply
    70,912.18x = 97,883.87 × 63,345.37
  4. Step 4: Simplify right side
    70,912.18x = 6,200,489,156.04
  5. Step 5: Solve for x
    x = 6,200,489,156.04/70,912.18
  6. Step 6: Final answer
    x = 87,438.99

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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.