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Finding the Fourth Proportional to 101,600.33, 140,202.90 and 56,274.75

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Solution

The fourth proportional to 101,600.33, 140,202.90 and 56,274.75 is: 77,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,600.33 : 140,202.90 = 56,274.75 : x
  2. Step 2: Convert to fraction form
    101,600.33/140,202.90 = 56,274.75/x
  3. Step 3: Cross multiply
    101,600.33x = 140,202.90 × 56,274.75
  4. Step 4: Simplify right side
    101,600.33x = 7,889,883,146.78
  5. Step 5: Solve for x
    x = 7,889,883,146.78/101,600.33
  6. Step 6: Final answer
    x = 77,656.08

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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.