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Finding the Fourth Proportional to 73,915.50, 101,883.60 and 57,754.56

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Solution

The fourth proportional to 73,915.50, 101,883.60 and 57,754.56 is: 79,607.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,915.50 : 101,883.60 = 57,754.56 : x
  2. Step 2: Convert to fraction form
    73,915.50/101,883.60 = 57,754.56/x
  3. Step 3: Cross multiply
    73,915.50x = 101,883.60 × 57,754.56
  4. Step 4: Simplify right side
    73,915.50x = 5,884,242,489.22
  5. Step 5: Solve for x
    x = 5,884,242,489.22/73,915.50
  6. Step 6: Final answer
    x = 79,607.69

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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.