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Finding the Fourth Proportional to 70,929.89, 97,883.91 and 39,099.92

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Solution

The fourth proportional to 70,929.89, 97,883.91 and 39,099.92 is: 53,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,929.89 : 97,883.91 = 39,099.92 : x
  2. Step 2: Convert to fraction form
    70,929.89/97,883.91 = 39,099.92/x
  3. Step 3: Cross multiply
    70,929.89x = 97,883.91 × 39,099.92
  4. Step 4: Simplify right side
    70,929.89x = 3,827,252,560.87
  5. Step 5: Solve for x
    x = 3,827,252,560.87/70,929.89
  6. Step 6: Final answer
    x = 53,958.25

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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.