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Finding the Fourth Proportional to 170,465.60, 255,928.80 and 108,257.60

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Solution

The fourth proportional to 170,465.60, 255,928.80 and 108,257.60 is: 162,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,465.60 : 255,928.80 = 108,257.60 : x
  2. Step 2: Convert to fraction form
    170,465.60/255,928.80 = 108,257.60/x
  3. Step 3: Cross multiply
    170,465.60x = 255,928.80 × 108,257.60
  4. Step 4: Simplify right side
    170,465.60x = 27,706,237,658.88
  5. Step 5: Solve for x
    x = 27,706,237,658.88/170,465.60
  6. Step 6: Final answer
    x = 162,532.72

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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.