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Finding the Fourth Proportional to 170,852.80, 256,279.20 and 168,228.40

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Solution

The fourth proportional to 170,852.80, 256,279.20 and 168,228.40 is: 252,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,852.80 : 256,279.20 = 168,228.40 : x
  2. Step 2: Convert to fraction form
    170,852.80/256,279.20 = 168,228.40/x
  3. Step 3: Cross multiply
    170,852.80x = 256,279.20 × 168,228.40
  4. Step 4: Simplify right side
    170,852.80x = 43,113,439,769.28
  5. Step 5: Solve for x
    x = 43,113,439,769.28/170,852.80
  6. Step 6: Final answer
    x = 252,342.60

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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.