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Finding the Fourth Proportional to 165,617.80, 248,426.70 and 54,795.40

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Solution

The fourth proportional to 165,617.80, 248,426.70 and 54,795.40 is: 82,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,617.80 : 248,426.70 = 54,795.40 : x
  2. Step 2: Convert to fraction form
    165,617.80/248,426.70 = 54,795.40/x
  3. Step 3: Cross multiply
    165,617.80x = 248,426.70 × 54,795.40
  4. Step 4: Simplify right side
    165,617.80x = 13,612,640,397.18
  5. Step 5: Solve for x
    x = 13,612,640,397.18/165,617.80
  6. Step 6: Final answer
    x = 82,193.10

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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.