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Finding the Fourth Proportional to 235,997.94, 325,675.86 and 128,567.70

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Solution

The fourth proportional to 235,997.94, 325,675.86 and 128,567.70 is: 177,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,997.94 : 325,675.86 = 128,567.70 : x
  2. Step 2: Convert to fraction form
    235,997.94/325,675.86 = 128,567.70/x
  3. Step 3: Cross multiply
    235,997.94x = 325,675.86 × 128,567.70
  4. Step 4: Simplify right side
    235,997.94x = 41,871,396,265.72
  5. Step 5: Solve for x
    x = 41,871,396,265.72/235,997.94
  6. Step 6: Final answer
    x = 177,422.72

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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.