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Finding the Fourth Proportional to 170,216.60, 255,324.90 and 144,847.40

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Solution

The fourth proportional to 170,216.60, 255,324.90 and 144,847.40 is: 217,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,216.60 : 255,324.90 = 144,847.40 : x
  2. Step 2: Convert to fraction form
    170,216.60/255,324.90 = 144,847.40/x
  3. Step 3: Cross multiply
    170,216.60x = 255,324.90 × 144,847.40
  4. Step 4: Simplify right side
    170,216.60x = 36,983,147,920.26
  5. Step 5: Solve for x
    x = 36,983,147,920.26/170,216.60
  6. Step 6: Final answer
    x = 217,271.10

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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.