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Finding the Fourth Proportional to 66,750.55, 100,015.26 and 46,932.28

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Solution

The fourth proportional to 66,750.55, 100,015.26 and 46,932.28 is: 70,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,750.55 : 100,015.26 = 46,932.28 : x
  2. Step 2: Convert to fraction form
    66,750.55/100,015.26 = 46,932.28/x
  3. Step 3: Cross multiply
    66,750.55x = 100,015.26 × 46,932.28
  4. Step 4: Simplify right side
    66,750.55x = 4,693,943,760.56
  5. Step 5: Solve for x
    x = 4,693,943,760.56/66,750.55
  6. Step 6: Final answer
    x = 70,320.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.