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Finding the Fourth Proportional to 70,947.76, 97,858.68 and 57,519.52

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Solution

The fourth proportional to 70,947.76, 97,858.68 and 57,519.52 is: 79,337.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.76 : 97,858.68 = 57,519.52 : x
  2. Step 2: Convert to fraction form
    70,947.76/97,858.68 = 57,519.52/x
  3. Step 3: Cross multiply
    70,947.76x = 97,858.68 × 57,519.52
  4. Step 4: Simplify right side
    70,947.76x = 5,628,784,301.43
  5. Step 5: Solve for x
    x = 5,628,784,301.43/70,947.76
  6. Step 6: Final answer
    x = 79,337.03

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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.