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Finding the Fourth Proportional to 70,765.03, 97,618.80 and 53,741.26

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Solution

The fourth proportional to 70,765.03, 97,618.80 and 53,741.26 is: 74,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,765.03 : 97,618.80 = 53,741.26 : x
  2. Step 2: Convert to fraction form
    70,765.03/97,618.80 = 53,741.26/x
  3. Step 3: Cross multiply
    70,765.03x = 97,618.80 × 53,741.26
  4. Step 4: Simplify right side
    70,765.03x = 5,246,157,311.69
  5. Step 5: Solve for x
    x = 5,246,157,311.69/70,765.03
  6. Step 6: Final answer
    x = 74,134.88

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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.