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Finding the Fourth Proportional to 170,795.20, 255,609.60 and 156,798.40

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Solution

The fourth proportional to 170,795.20, 255,609.60 and 156,798.40 is: 234,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,795.20 : 255,609.60 = 156,798.40 : x
  2. Step 2: Convert to fraction form
    170,795.20/255,609.60 = 156,798.40/x
  3. Step 3: Cross multiply
    170,795.20x = 255,609.60 × 156,798.40
  4. Step 4: Simplify right side
    170,795.20x = 40,079,176,304.64
  5. Step 5: Solve for x
    x = 40,079,176,304.64/170,795.20
  6. Step 6: Final answer
    x = 234,662.19

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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.