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Finding the Fourth Proportional to 70,523.51, 97,239.12 and 57,729.56

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Solution

The fourth proportional to 70,523.51, 97,239.12 and 57,729.56 is: 79,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,523.51 : 97,239.12 = 57,729.56 : x
  2. Step 2: Convert to fraction form
    70,523.51/97,239.12 = 57,729.56/x
  3. Step 3: Cross multiply
    70,523.51x = 97,239.12 × 57,729.56
  4. Step 4: Simplify right side
    70,523.51x = 5,613,571,456.68
  5. Step 5: Solve for x
    x = 5,613,571,456.68/70,523.51
  6. Step 6: Final answer
    x = 79,598.58

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1.5x scale

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.