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Finding the Fourth Proportional to 70,888.92, 97,826.97 and 39,057.81

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Solution

The fourth proportional to 70,888.92, 97,826.97 and 39,057.81 is: 53,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,888.92 : 97,826.97 = 39,057.81 : x
  2. Step 2: Convert to fraction form
    70,888.92/97,826.97 = 39,057.81/x
  3. Step 3: Cross multiply
    70,888.92x = 97,826.97 × 39,057.81
  4. Step 4: Simplify right side
    70,888.92x = 3,820,907,207.14
  5. Step 5: Solve for x
    x = 3,820,907,207.14/70,888.92
  6. Step 6: Final answer
    x = 53,899.92

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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.