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Finding the Fourth Proportional to 146,191.98, 201,680.64 and 85,731.96

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Solution

The fourth proportional to 146,191.98, 201,680.64 and 85,731.96 is: 118,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,191.98 : 201,680.64 = 85,731.96 : x
  2. Step 2: Convert to fraction form
    146,191.98/201,680.64 = 85,731.96/x
  3. Step 3: Cross multiply
    146,191.98x = 201,680.64 × 85,731.96
  4. Step 4: Simplify right side
    146,191.98x = 17,290,476,561.25
  5. Step 5: Solve for x
    x = 17,290,476,561.25/146,191.98
  6. Step 6: Final answer
    x = 118,272.40

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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.