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Finding the Fourth Proportional to 175,115.20, 262,867.20 and 108,630.40

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Solution

The fourth proportional to 175,115.20, 262,867.20 and 108,630.40 is: 163,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,115.20 : 262,867.20 = 108,630.40 : x
  2. Step 2: Convert to fraction form
    175,115.20/262,867.20 = 108,630.40/x
  3. Step 3: Cross multiply
    175,115.20x = 262,867.20 × 108,630.40
  4. Step 4: Simplify right side
    175,115.20x = 28,555,369,082.88
  5. Step 5: Solve for x
    x = 28,555,369,082.88/175,115.20
  6. Step 6: Final answer
    x = 163,066.19

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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.