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Finding the Fourth Proportional to 149,833.01, 206,775.84 and 86,170.86

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Solution

The fourth proportional to 149,833.01, 206,775.84 and 86,170.86 is: 118,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,833.01 : 206,775.84 = 86,170.86 : x
  2. Step 2: Convert to fraction form
    149,833.01/206,775.84 = 86,170.86/x
  3. Step 3: Cross multiply
    149,833.01x = 206,775.84 × 86,170.86
  4. Step 4: Simplify right side
    149,833.01x = 17,818,051,960.02
  5. Step 5: Solve for x
    x = 17,818,051,960.02/149,833.01
  6. Step 6: Final answer
    x = 118,919.41

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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.