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Finding the Fourth Proportional to 170,163.96, 255,258.90 and 51,845.40

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Solution

The fourth proportional to 170,163.96, 255,258.90 and 51,845.40 is: 77,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,163.96 : 255,258.90 = 51,845.40 : x
  2. Step 2: Convert to fraction form
    170,163.96/255,258.90 = 51,845.40/x
  3. Step 3: Cross multiply
    170,163.96x = 255,258.90 × 51,845.40
  4. Step 4: Simplify right side
    170,163.96x = 13,233,999,774.06
  5. Step 5: Solve for x
    x = 13,233,999,774.06/170,163.96
  6. Step 6: Final answer
    x = 77,772.05

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1.5x scale

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.